I object to teaching of slogans intended to befog the mind, of whatever kind they may be

If we were to select the most intelligent, imaginative, energetic, and emotionally stable third of mankind, all races would be present.

The behavior of an individual is determined not by his racial affiliation, but by the character of his ancestry and his cultural environment.

The existence of any pure race with special endowments is a myth, as is the belief that there are races all of whose members are foredoomed to eternal inferiority.

The disease of mutual distrust among nations is the bane of modern civilization

The passion for seeking the truth for truth's sake can be kept alive only if we continue to seek the truth for truth's sake.

No one has ever proved that a human being, through his descent from a certain group of people, must of necessity have certain mental characteristics.

There is no fundamental difference in the ways of thinking of primitive and civilized man. A close connection between race and personality has never been established.

The historical development of the work of anthropologists seems to single out clearly a domain of knowledge that heretofore has not been treated by any other science

My father had retained an emotional affection for the ceremonial of his parental home, without allowing it to influence his intellectual freedom

We all know scientists who in private life do not come up to the standard of truthfulness, but who, nevertheless, would not consciously falsify the results of their researches

We must succeed and finish our course with joy

Humour, like any life skill, is learnable. If others can learn it, so can you.

Everything I achieve affects my family as well, and suddenly, my kids' dad became the most famous man in the country for a couple of weeks.

Attack rapidly, ruthlessly, viciously, without rest, however tired and hungry you may be, the enemy will be more tired, more hungry. Keep punching.

Moonshiners put more time, energy, thought, and love into their cars than any racer ever will. Lose on the track, and you go home. Lose with a load of whiskey, and you go to jail.

You have to expect things of yourself before you can do them.

There is only one object on earth that frightens me: a physicist working on a new trick.

Spatial working memory is impaired by stress.

If you can force your heart and nerve and sinew to serve your turn long after they are gone, and so hold on when there is nothing in you except the will which says to them: 'Hold on!'

Bringing an end to mass government surveillance needs to be a central pillar of returning to the principles we have put in jeopardy in the early 21st century.