He who asks questions cannot avoid the answers.

Science has promised us truth. It has never promised us either peace or happiness.

Between friends there is no need of Justice.

The oldbelieve everything, the middle-aged suspect everything, the young knoweverything.

Thepeak efficiency of knowledge and strategy is to make conflict unnecessary.

Peoplewho are too concerned with how well they are doing will be less successfuland feel less competent than those who focus on the task itself... Somepsychologists call it a conflict between egoorientation,or between extrinsic and intrinsic motivation…

Some People strengthen the society just by being the kind of people they are.

As longas you keep a person down, some part of you has to be down there to hold him down,so it means you cannot soar as you otherwise might.

We owealmost all our knowledge not to those who have agreed but to those who havediffered.

One should never rub bottoms with a porcupine.

Freedom to learn is the first necessity of guaranteeing that man himself shall be self-reliant enough to be free

To be simple is the best thing in the world; to be modest is the next best thing. I am not so sure about being quiet.