It is disgraceful to live at the cost of one's self-respect. Self-respect is the most vital factor in life. Without it, man is a cipher. To live worthily with self-respect, one has to overcome difficulties. It is out of hard and ceaseless struggle alone that one derives strength, confidence and recognition.
Emerson has said that consistency is a virtue of an ass. No thinking human being can be tied down to a view once expressed in the name of consistency. More important than consistency is responsibility. A responsible person must learn to unlearn what he has learned. A responsible person must have the courage to rethink and change his thoughts. Of course there must be good and sufficient reason for unlearning what he has learned and for recasting his thoughts. There can be no finality in rethinking.
The teachings of Buddha are eternal, but even then Buddha did not proclaim them to be infallible. The religion of Buddha has the capacity to change according to times, a quality which no other religion can claim to have.. Now what is the basis of Buddhism? If you study carefully, you will see that Buddhism is based on reason. There is an element of flexibility inherent in it, which is not found in any other religion.