If we do not lay out ourselves in the service of mankind whom should we serve?
The simple things are also the most extraordinary things, and only the wise can see them.
Each problem that I solved became a rule which served afterwards to solve other problems.
A proverb is much matter distilled into few words.
To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact
Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy.
Nothing is more intolerable than to have to admit to yourself your own errors.
Love one another, but make not a bond of love: Let it rather be a moving sea between the shores of your souls.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.
The greatest power we have is the power of choice.
It is easy to be brave at a safe distance.
We are all born ignorant, but one must work hard to remain stupid
Everything excellent is as difficult as it is rare.
The ethos of redemption is realized in self-mastery, by means of temperance, that is, continence of desires.
Nothing is so strong as gentleness, nothing so gentle as real strength
Empty your cup so that it may be filled; become devoid to gain totality.
Intelligence is a moral category.
Nobody made a greater mistake than he who did nothing because he could do only a little.
In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.
Choose rather to be strong of soul than strong of body.
Empty pockets never held anyone back. Only empty heads and empty hearts can do that.