If religion must be in conformance with reason, then one would expect that the leaders of a religion too act in accordance to reason and its judgemnets. One of the most obvious judgments of reason is that one must practice what he preaches. This act has also been emphasized on in the Holy Books sent by God. For instance:
O You who believe! Why do you utter what you do not do? It is greatly detested by God to utter what you do not do.
Quran 61:2-3

Do you order the people to do good but forget about yourselves whilst you read the Book! Do you not use your reason!
Quran 2:44

You, then, who teach others, do you not teach yourself? You who preach against stealing, do you steal? You who say that people should not commit adultery, do you commit adultery?
Romans 2:21-22 (New International Version)

There are many instances in the Bahai scripture that show that Bahai leaders have preached what they have not practiced. Apart from the instances that we have mentioned throughout the book and are related to the twelve principles, we will mention a few other samples here:

Prohibition of Kissing Hands
Read about this Prohibition here

The Bahai law for Burial states:
It is forbidden you to transport the body of the deceased a greater distance than one hours journey from the city . . . The spirit of Bahaullahs law is for the deceased to be buried near where he or she dies.
Bahaullah, Gleanings from the Writings of Bahaullah, p. 102

This is how the Burial was performed for the Bab on the orders of Bahaullah and Abdul Baha:
As observed in a previous chapter the mangled bodies of the Bab and His fellow-martyr, Mirza Muhammad-`Ali, were removed, in the middle of the second night following their execution, through the pious intervention of Haji Sulayman Khan, from the edge of the moat where they had been cast to a silk factory owned by one of the believers of Milan, and were laid the next day in a wooden casket, and thence carried to a place of safety. Subsequently, according to Baháulláhs instructions, they were transported to Tihran and placed in the shrine of Imam-Zadih Hasan. They were later removed to the residence of Haji Sulayman Khan himself in the Sar-Chashmih quarter of the city, and from his house were taken to the shrine of Imam-Zadih Ma`sum, where they remained concealed until the year 274 1284 A.H. (1867-1868), when a Tablet, revealed by Bahaullah in Adrianople, directed Mulla `Ali-Akbar-i-Shahmirzadi and Jamal-i-Burujirdi to transfer them without delay to some other spot . . . Haji Shah Muhammad buried the casket beneath the floor of the inner sanctuary of the shrine of Imam-Zadih Zayd, where it lay undetected until Mirza Asadullah-i-Isfahani was informed of its exact location through a chart forwarded to him by Bahaullah. Instructed by Bahaullah to conceal it elsewhere, he first removed the remains to his own house in Tihran, after which they were deposited in several other localities such as the house of Husayn-Aliy-i-Isfahani and that of Muhammad-Karim-i-Athar, where they remained hidden until the year 1316 (1899) A.H., when, in pursuance of directions issued by Abdul Baha, this same Mirza Asadullah, together with a number of other believers, transported them by way of Isfahan, Kirmanshah, Baghdad and Damascus, to Beirut and thence by sea to Akka, arriving at their destination on the 19th of the month of Ramadan 1316 A.H. (January 31, 1899), fifty lunar years after the Babs execution in Tabriz.
Shoghi Effendi, God Passes By, pp. 273-274

This one hour limit, changes to about 50 years and thousands of kilometers when applied to the Bab.

Noah and the Flood: Symbolical or Reality
Shoghi tells his followers to believe in a symbolical flood and Ark in the time of Noah:
The statement in Seven Days of Creation certainly cannot be considered authoritative or correct. The Ark and the Flood we believe are symbolical.
Helen Bassett Hornby, Lights of Guidance: A Bahai Reference File, chap. XLI, no. 1716

This is while Bahaullah clearly refers to the flood as a cause for the destruction of many historical records:
Manifestations . . . were dispatched in the first centuries and invited the people to the truth. But because of the disturbances and changes in the world some of their names and sayings have been lost. In the books, the flood has been mentioned and in that event everything that was on earth was drowned including history records and other things. Furthermore, there have been many revolutions which have annihilated (the records) of some events . . .
Bahaullah, Muntakhabati az athar Hazrat Bahaullah, pp. 115-116

Here is the official distorted Bahai translation that when one reads does not think he is referring to the flood:
Manifestations . . . have been sent down from time immemorial, and been commissioned to summon mankind to the one true God. That the names of some of them are forgotten and the records of their lives lost is to be attributed to the disturbances and changes that have overtaken the world. Mention hath been made in certain books of a deluge which caused all that existed on earth, historical records as well as other things, to be destroyed. Moreover, many cataclysms have occurred which have effaced the traces of many events.
Bahaullah, Gleanings from the Writings of Bahaullah, p. 174

• Religion Must be in Conformity with Science and Reason: Introduction
• Is This a New Principle?
• Did the Founders of Bahaism Follow This Principle?
• Bab’s Religious Orders That Contradict Reason and Common sense
• Bahaullah's Statements That Contradict Reason and Common sense
• Abdul Baha's Statements That Contradict Reason and Common sense - Part I<
• Abdul Baha's Statements That Contradict Reason and Common sense - Part II
• Shoghi's Statements That Contradict Reason and Common sense - Part II
• Source of Bab's Knowledge
• Source of Bahaullah's Education
• Source of Abdul Baha's Knowledge
• Please practice what you preach!
• Is This Principle Correct From a Rational and Logical Perspective?
• Multiple Contradictions by Bahai Founders
• Summary and Conclusion

The articles have been based on the book "Avaze Dohol" - the Beating of the Drum by Masoud Basiti, Zahra Moradi.