Those who staying with the wrong reward,(eg. stay in comfort zone, etc.), long enough will get problem.

Time flies when you are having fun.

A man's ethical behaviour should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.

Science is the process of making obviously erroneous ideas less obviously erroneous.

Knowledge is dead; the school, however, serves the living.

The same thinking and actions that created our problems cannot be used to solve them.

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.