We can never have enough of nature. We must be refreshed by the sight of inexhaustible vigor.

The bluebird carries the sky on his back.

We seem to have forgotten that the expression "a liberal education" originally meant among the Romans one worthy of free men; while the learning of trades and professions by which to get your livelihood merely, was considered worthy of slaves only. But taking a hint from the word, I would go a step further and say, that it is not the man of wealth and leisure simply, though devoted to art, or science, or literature, who, in a true sense, is liberally educated, but only the earnest and free man.

The slight reproach to which the virtue of patriotism is commonly liable, the noble are most likely to incur.

To have done anything just for money is to have been truly idle.

He who is only a traveler learns things at second-hand and by the halves, and is poor authority. We are most interested when science reports what those men already know practically or instinctively, for that alone is a true humanity, or account of human experience.

What a fool he must be who thinks that his El Dorado is anywhere but where he lives.