The aim of argument, or of discussion, should not be victory, but progress.
Those who never retract their opinions love themselves more than they love the truth.
We know God easily, if we do not constrain ourselves to define him.
When my friends lack an eye, I look at them in profile.
Education should be gentle and stern, not cold and lax.
There are single thoughts that contain the essence of a whole volume, single sentences that have the beauties of a large work.