Humanistic ethics is based on the principle that only humans themselves can determine the criterion for virtue and not an authority transcending us.

The fundamental defect of fathers, in our competitive society, is that they want their children to be a credit to them. We all feel instinctively, that our children's success reflect glory upon ourselves, while their failures make us feel shame. Unfortunately, the successes which cause us to swell with pride are often of an undesirable kind.... Neither happiness nor virtue, but worldly success, is what the average father desires for his children.

Dora and I are now married, but just as happy as we were before.

I have come to realize that an early symptom of approaching mental illness is the belief that one's work is terribly important. If you consider your work very important you should take a day off.

In any closet, you can find it, if it is too small, or out of style, or there is just one of it where there should be two

Frege has the merit of ... finding a third assertion by recognising the world of logic which is neither mental nor physical.

One of the main causes of trouble in the world is dogmatic and fanatical belief in some doctrine for which there is no adequate evidence