It is science alone that can solve the problems of hunger and poverty, of insanitation and illiteracy, of superstition and deadening custom and tradition, of vast resources running to waste, or a rich country inhabited by starving people... Who indeed could afford to ignore science today? At every turn we have to seek its aid... The future belongs to science and those who make friends with science.

Remember always that there not so very much difference between various people as we seem to imagine. Maps and atlases show us countries in different colors. Undoubtedly people do differ from one another, but they resemble each other also a great deal, and it is well to keep this in mind and not misled by colors on the map or by national boundaries.

History is the record of human progress, a record of the struggle of the advancement of the human mind, of the human spirit, towards some known or unknown objective.

We live in a wonderful world that is full of beauty, charm and adventure. There is no end to the adventures that we can have if only we seek them with our eyes open.

What we really are matters more than what other people think of us.

The purely agitational attitude is not good enough for a detailed consideration of a subject.

Lasting peace can come only to peaceful people.