We are all primary numbers divisible only by ourselves.

Originality exists in every individual because each of us differs from the others. We are all primary numbers divisible only by ourselves.

Logical reasoning is an argument which we have with ourselves and which reproduces internally the features of a real argument.

Our greatest evils flow from ourselves.

Our entire life - consists ultimately in accepting ourselves as we are.

Virtue is a state of war, and to live in it we have always to combat with ourselves.