Art is the employent of the powers of nature for an end.

In the long-run, the best proof of a good character is good actions.

The moment one asks himself whether he is happy, he ceases to be so.

A general State education is a mere contrivance for moulding people to be exactly like one another, and as the mould in which it casts them is that which pleases the dominant power in the government.

The ne plus ultra of wickedness ... is embodied in what is commonly presented to mankind as the creed of Christianity.

A person whose desires and impulses are his own - are the expression of his own nature, as it has been developed and modified by his own culture - is said to have a character. One whose desires and impulses are not his own, has no character, no more than a steam-engine has character.

Hitherto it is questionable if all the mechanical inventions yet made have lightened the day's toil of any human being. They have enabled a greater population to live the same life of drudgery and imprisonment, and an increased number of manufacturers and others to make fortunes. They have increased the comforts of the middle classes. But they have not yet begun to effect those great changes in human destiny, which it is in their nature and in their futurity to accomplish.