Act enthusiastic and you will be enthusiastic
Let no man pull you low enough to hate him.
We are all born ignorant, but one must work hard to remain stupid
Knowing is not enough, we must apply. Willing is not enough, we must do.
A person reveals his character by nothing so clearly as the joke he resents.
Real knowledge is to know the extent of one's ignorance.
Knowledge speaks, but wisdom listens
What's done can't be undone.
It is always advisable to perceive clearly our ignorance.
It is easy to be brave at a safe distance.
The trouble with most of us is that we would rather be ruined by praise than saved by criticism.
The ultimate authority must always rest with the individual's own reason and critical analysis.
Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.
If we don't believe in freedom of expression for people we despise, we don't believe in it at all.
Love make us poets, and the approach of death should make us philosophers.
Those who know, do. Those that understand, teach.
Be realistic: Plan for a miracle
It seems essential, in relationships and all tasks, that we concentrate only on what is most significant and important.
We sometimes congratulate ourselves at the moment of waking from a troubled dream; it may be so the moment after death.
Promises are like crying babies in a theater, they should be carried out at once.
As our case is new, we must think and act anew.