The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.

The most tyrannical of governments are those which make crimes of opinions, for everyone has an inalienable right to his thoughts.

He whose honor depends on the opinion of the mob must day by day strive with the greatest anxiety, act and scheme in order to retain his reputation. For the mob is varied and inconsistent, and therefore if a reputation is not carefully preserved it dies quickly.

Let unswerving integrity be your watchword.

All happiness or unhappiness solely depends upon the quality of the object to which we are attached by love.

So long as a man imagines that he cannot do this or that, so long as he is determined not to do it; and consequently so long as it is impossible to him that he should do it.

Minds are not conquered by force, but by love and high-mindedness.