The forces in a capitalist society, if left unchecked, tend to make the rich richer and the poor poorer.

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

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

Action to be effective must be directed to clearly conceived ends.

Science and technology have freed humanity from many burdens and given us this new perspective and great power. This power can be used for the good of all. If wisdom governs our actions; but if the world is mad or foolish, it can destroy itself just when great advances and triumphs are almost without its grasp.

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

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.