It is a very great thing to be able to think as you like; but, after all, an important question remains: what you think.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction, and skillful execution; it represents the wide choice of many alternatives.

Fast is fine, but accuracy is everything.

To understand the true quality of people, you must look into their minds, and examine their pursuits and aversions.

We acquire a particular quality by acting in a particular way.

The two qualities that chiefly inspire regard and affection [are] that a thing is you own and that it is your only one.

In this age, the man who dares to think for himself and to act independently does a service to his race.

You must try to observe yourself more and more objectively, to look at everything in yourself as though another person.

Those who are free of resentful thoughts surely find peace.

There is one thing stronger than all the armies in the world; and that is an idea whose time has come.

The value of a college education is not the learning of many facts but the training of the mind to think.