The researcher is more memorable than the researched.

I would not have every man nor every part of a man cultivated, any more than I would have every acre of earth cultivated: part will be tillage, but the greater part will be meadow and forest, not only serving an immediate use, but preparing a mould against a distant future, by the annual decay of the vegetation which it supports.

We are double-edged blades, and every time we whet our virtue the return stroke strops our vice.

Did you ever hear of a man who had striven all his life faithfully and singly towards an object, and in no measure obtained it? If a man constantly aspires, is he not elevated? Did ever a man try heroism, magnanimity, truth, sincerity, and find that there was no advantage in them,--that it was a vain endeavor?

The outward is only the outside of that which is within. Men are not concealed under habits, but are revealed by them; they are their true clothes.

Methinks my own soul must be a bright invisible green.

What would human life be without forests, those natural cities?