Obviously, the highest type of efficiency is that which can utilize existing material to the best advantage.

I have always thought that the best way to find out what is right and what is not right, what should be done and what should not be done, is not to give a sermon, but to talk and discuss, and out of discussion sometimes a little bit of truth comes out.

It is far better to know our own weaknesses and failures than to point out those of others.

Peace is not a relationship of nations. It is a condition of mind brought about by a serenity of soul. Peace is not merely the absence of war. It is also a state of mind. Lasting peace can come only to peaceful people.

It is the habit of every aggressor nation to claim that it is acting on the defensive.

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.

Culture is the widening of the mind and of the spirit.