Striving for social justice is the most valuable thing to do in life.

Overpopulation in various countries has become a serious threat to the health of people and a grave obstacle to any attempt to organise peace on this planet

The trite objects of human efforts-possessions, superficial success, luxury-have always seemed contemptible to me.

Science can only ascertain what is, but not what should be, and outside of its domain value judgements of all kinds remain necessary.

In order to be an immaculate member of a flock of sheep, one must above all be a sheep oneself.

Force always attracts men of low morality.

...and knowledge is one of the finest attributes of man - though often it is most loudly voiced by those who strive for it the least.