The logic now in use serves rather to fix and give stability to the errors which have their foundation in commonly received notions than to help the search for truth. So it does more harm than good.

It is idle to expect any great advancement in science from the superinducing and engrafting of new things upon old. We must begin anew from the very foundations, unless we would revolve for ever in a circle with mean and contemptible progress.

Painting is the pattern of one's own nervous system being projected on canvas.

He was reputed one of the wise men that made answer to the question when a man should marry? 'A young man not yet, an elder man not at all.'

Princes are like heavenly bodies, which cause good or evil times, and which have much veneration, but no rest.

Riches are for spending, and spending for honor and good actions; therefore extraordinary expense must be limited by the worth of the occasion.

Man, as the minister and interpreter of nature, is limited in act and understanding by his observation of the order of nature; neither his understanding nor his power extends further.