A bad book is the worse that it cannot repent. It has not been the devil's policy to keep the masses of mankind in ignorance; but finding that they will read, he is doing all in his power to poison their books.

Chemistry itself knows altogether too well that - given the real fear that the scarcity of global resources and energy might threaten the unity of mankind - chemistry is in a position to make a contribution towards securing a true peace on earth.

In particular, for younger researchers on whom the future of mankind may depend. We believe that they are working with all the scientific wisdom at their disposal for the preservation of the inheritance of the earth and for the lasting survival of mankind.

The ordinary man with extraordinary power is the chief danger for mankind - not the fiend or the sadist.

The man of science, like the man of letters, is too apt to view mankind only in the abstract, selecting in his consideration only a single side of our complex and many-sided being.

In general, mankind, since the improvement of cookery, eats twice as much as nature requires.

I conceive that the great part of the miseries of mankind are brought upon them by false estimates they have made of the value of things.

When will mankind be convinced and agree to settle their difficulties by arbitration?

All mankind is divided into three classes: those that are immovable, those that are movable, and those that move.

Black and white are the colors of photography. To me they symbolize the alternatives of hope and despair to which mankind is forever subjected.

Liberty is not the unique right of Americans or even Westerners, but is mankind's right.

You may count on Mexico's support, since your commitment to the noblest causes of mankind and your vast experience are and will be invaluable in enabling us, together, to achieve a better world.

Of all the passions of mankind, the love of novelty most rules the mind. In search of this, from realm to realm we roam. Our fleets come loaded with every folly home.

The history of mankind is confined within a limited period, and from every quarter brings an intimation that human affairs have had a beginning.

I certainly feel that the time is not far distant when a knowledge of the principles of diet will be an essential part of one's education. Then mankind will eat to live, be able to do better mental and physical work and disease will be less frequent.