Vanity is a static thing. It puts it faith in what it has, and is easily wounded. Pride is active, and satisfied only with what it can do, hence accustomed not to feel small stings.

The test and the use of man's education is that he finds pleasure in the exercise of his mind.

no subject of study is more important than reading…all other intellectual powers depend on it.

The reason teaching has to go on is that children are not born human; they are made so.

After being boxed in by man and his constructions in Europe and the East, the release into space is exhilarating. The horizon is a huge remote circle, and no hills intervene.

Science is, in the best and strictest sense, glorious entertainment

Let us face a pluralistic world in which there are no universal churches, no single remedy for all diseases, no one way to teach or write or sing, no magic diet, no world poets, and no chosen races, but only the wretched and wonderfully diversified human race.