Protagoras asserted that there are two sides to every question, exactly opposite to each other.

There is only a finger's difference between a wise man and a fool.

It is not that I am mad, it is only that my head is different from yours.

I threw my cup away when I saw a child drinking from his hands at the trough.

We have complicated every simple gift of the gods.

Why not whip the teacher when the pupil misbehaves?

Even if I am but a pretender to wisdom, that in itself is philosophy.