Neither acquiescence in skepticism nor acquiescence in dogma is what education should produce.

Be scrupulously truthful, even if the truth is inconvenient, for it is more inconvenient when you try to conceal it.

As for earthquakes, though they were still formidable, they were so interesting that men of science could hardly regret them.

Every living thing is a sort of imperialist, seeking to transform as much as possible of its environment into itself.

The point of philosophy is to start with something so simple as not to seem worth stating, and to end with something so paradoxical that no one will believe it.

A world full of happiness is not beyond human power to create; the obstacles imposed by inanimate nature are not insuperable. The real obstacles lie in the heart of man, and the cure for these is a firm hope, informed and fortified by thought.

Politics is largely governed by sententious platitudes which are devoid of truth