Quote #33337
No moral system can rest solely on authority.
Quote #22058
Each problem that I solved became a rule, which served afterwards to solve other...
Quote #32840
Nothing is impossible for the man who doesn’t have to do it himself.
Quote #28434
If I had the time to sit down and write a thank-you note to...
Quote #31954
When you understand one thing through and through, you understand everything.
Quote #29479
One great cause of failure is lack of concentration.
Quote #12947
When a man marries, he has fulfilled half of (his) faith. So let him...
Quote #33184
For most of history, Anonymous was a woman.
Quote #29434
Fortunate indeed, is the man who takes exactly the right measure of himself, and...
Quote #22845
Only the flexibly creative person can really manage the future, Only the one who...