The familiarity of superiors embitters one, because it may not be returned.

The strongest and most evil spirits have to date advanced mankind the most: they always rekindled the sleeping passions - all orderly arranged society lulls the passions to sleep; they always reawakened the sense of comparison, of contradiction, of delight in the new, the adventurous, the untried; they compelled men to set opinion against opinion, ideal plan against ideal plan.

A heart full of courage and cheerfulness needs a little danger from time to time, or the world gets unbearable.

It is doubtful whether anyone who has travelled widely has found anywhere in the world regions more ugly than in the human face.

Pathetic attitudes are not in keeping with greatness.

It is within your power to see that all you have experienced, trials, errors, faults, deceptions, passions, your love and your hope, shall be merged wholly in your aim.

Morality is the best of all devices for leading mankind by the nose.