It is wisdom to believe the heart.

There are three traps that strangle philosophy: The church, the marriage bed, and the professor's chair.

To call war the soil of courage and virtue is like calling debauchery the soil of love.

Happiness is the only sanction of life; where happiness fails, existence remains a mad and lamentable experiment.

The line between what is known scientifically and what has to be assumed in order to support knowledge is impossible to draw. Memory itself is an internal rumour.

Plasticity loves new moulds because it can fill them, but for a man of sluggish mind and bad manners there is decidedly no place like home.

America is a young country with an old mentality.