Action may not always bring happiness, but there is no happiness without action.

The best way to have a good idea is to have lots of ideas.

The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.

If equations are trains threading the landscape of numbers, then no train stops at pi.

Although he may not always recognize his bondage, modern man lives under a tyranny of numbers.

There is only one religion, though there are a hundred versions of it.

We are part of the earth and it is part of us. The perfumed flowers are our sisters; the deer, the horse, the great eagle, these are our brothers. The rocky crests, the juices in the meadows, the body heat of the pony, and man – all belong to the same family.

No snowflake in an avalanche ever feels responsible.

No one has realized the wealth of sympathy, the kindness and generosity hidden in the soul of a child. The effort of every true education should be to unlock that treasure.

The hardest arithmetic to master is that which enables us to count our blessings.

Perhaps in time the so-called Dark Ages will be thought of as including our own.

If capitalism is fair then unionism must be. If men have a right to capitalize their ideas and the resources of their country, then that implies the right of men to capitalize their labor.

The California crunch really is the result of not enough power-generating plants and then not enough power to power the power of generating plants.

Our habitual tendency is to always be busy, doing something, changing something, or cultivating something. Therefore when somebody asks us to just relax, to just be natural, it is very difficult for us to actually understand how to do that.

People were frustrated watching helicopters fly overhead without stopping to pick anyone up, and sometimes people felt threatened rather than comforted by police patrolling with M-16s.

So if a man's wit be wandering, let him study the mathematics; for in demonstrations, if his wit be called away ever so little, he must begin again.