Those who are bent on revolutionizing society may be divided into those who seek something for themselves thereby and those who seek something for their children and grandchildren.

I consist of body and soul - in the worlds of a child. And why shouldn't we speak like children? But the enlightened, the knowledgealbe would say: I am body through and through, nothing more; and the soul is just a word for something on the body.

The greatest progress that the human race has made lies in learning how to make correct inferences.

This mother needs happy, reputable children, and that one needs unhappy ones: otherwise she cannot show her kindness as a mother.

The deeper minds of all ages have had pity for animals.

Belief in truth begins with doubting all that has hitherto been believed to be true.

Hold a true friend with both your hands.