The ultimate authority must always rest with the individual's own reason and critical analysis.
Without courage, wisdom bears no fruit.
A good teacher protects his pupils from his own influence.
There is always time to add a word, never to withdraw one.
I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself.
One must wait until the evening to see how splendid the day has been.
To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.
The ethos of redemption is realized in self-mastery, by means of temperance, that is, continence of desires.
Experience is the only prophecy of wise men.
Intelligence is a moral category.
One who deceives will always find those who allow themselves to be deceived.
What's done can't be undone.
What's real and what's true aren't necessarily the same.
Each problem that I solved became a rule which served afterwards to solve other problems.
As the soft yield of water cleaves obstinate stone, So to yield with life solves the insolvable: To yield, I have learned, is to come back again.
Stupidity is a talent for misconception.
Property is surely a right of mankind as real as liberty.
Where there is anger, there is always pain underneath.
Everything excellent is as difficult as it is rare.
I have had good experience and trial of this world...I know what it is to be a subject, what to be a sovereign, what to have good neighbours, and sometimes meet evil willers. I have found treason in trust, seen great benefits little regarded.
Take care of the pieces well. The whole will take care of itself.