Follow in the footsteps of your fathers' virtue! How could you hope to climb high unless your fathers' will climbs with you?

Sometimes we owe a friend to the lucky circumstance that we give him no cause for envy.

[Heraclitus had] a regal air of certainty.

People who have given us their complete confidence believe that they have a right to ours. The inference is false, a gift confers no rights.

Solitude makes us tougher towards ourselves and tenderer towards others. In both ways it improves our character.

We have arranged for ourselves a world in which we can live - by positing bodies, lines, planes, causes and effects, motion and rest, form and content; without these articles of faith nobody could now endure life. But that does not prove them. Life is no argument. The conditions of life might include error.

Talking much about oneself can also be a means to conceal oneself.