It often happens that a man is more humanely related to a cat or dog than to any human being.

That is mere sentimentality that lies abed by day and thinks itself white, far from the tan and callus of experience.

The fact is, mental philosophy is very like Poverty, which, you know, begins at home; and indeed, when it goes abroad, it is poverty itself.

Hold fast to your most indefinite, waking dream.

When any real progress is made, we unlearned and learn anew what we thought we knew before.

Carlyle said that how to observe was to look, but I say that it is rather to see, and the more you look the less you will observe.

The discoveries which we make abroad are special and particular; those which we make at home are general and significant. The further off, the nearer the surface. The nearer home, the deeper.