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

Remember that in every single case in history the process of adaptation has been one of exceeding slowness. Do not look for the impossible, but do not let your path deviate from the quiet and steadfast insistence on full opportunities for your powers.

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.

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

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.

My parents had broken through the shackles of dogma

Furthermore, the study of the present surroundings is insufficient: the history of the people, the influence of the regions through which it has passed on its migrations, and the people with whom it came into contact, must be considered