Nothing in human affairs is worth any great anxiety.

... what we can be positive about is what we have just said, namely that they must be given the right education, whatever that may be, as the surest way to make them behave humanely to each other and the subjects in their charge.

In an honest man there is always something of a child.

I will prove by my life that my critics are liars.

Desires are only the lack of something: and those who have the greatest desires are in a worse condition than those who have none, or very slight ones.

I can show you that the art of calculation has to do with odd and even numbers in their numerical relations to themselves and to each other.

Those who reproach injustice do so because they are afraid not of doing it but of suffering it.