Any preoccupation with ideas of what is right or wrong in conduct shows an arrested intellectual development

It is only the intellectually lost who ever argue.

To do nothing at all is the most difficult thing in the world, the most difficult and the most intellectual

Intellectual generalities are always interesting, but generalities in morals mean absolutely nothing.

When a man is old enough to do wrong he should be old enough to do right also

I choose my friends for their good looks, my acquaintances for their good characters, and my enemies for their good intellects.