The fairest thing we can experience is the mysterious. It is the fundamental emotion that stands at the cradle of true art and true science. It is the source of all true art and science. He who knows it not and can no longer wonder, no longer feel amazement, is as good as dead, a snuffed-out candle.

Whoever is careless with the truth in small matters cannot be trusted in important affairs.

Members of legislative bodies are selected by political parties, largely financed or otherwise influenced by private capitalists who, for all practical purposes, separate the electorate from the legislature. The consequence is that the representatives of the people do not in fact sufficiently protect the interests of the underprivileged sections of the population.

The formulation of the problem is often more essential than its solution, which may be merely a matter of mathematical or experimental skill.

Make everything as simple as possible, but not simpler.

Man like every other animal is by nature indolent. If nothing spurs him on, then he will hardly think, and will behave from habit like an automaton.

The same thinking and actions that created our problems cannot be used to solve them.