Unanimity is the mistress of strength.

It is because of the servility of photography that I am fundamentally contemptuous of this chance invention which will never be an art but which plagiarizes nature by means of optics. (1848)

The people only understand what they can feel; the only orators that can affect them are those who move them.

Joy is a flame which association alone can keep alive, and which goes out unless communicated.

Mystery hovers over all things here below.

Nature has given women two painful but heavenly gifts, which distinguish them, and often raise them above human nature,--compassion and enthusiasm. By compassion, they devote themselves; by enthusiasm they exalt themselves.

Assassination makes only martyrs, not converts.