Art takes nature as its model.

It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.

It is of the nature of desire not to be satisfied, and most men live only for the gratification of it.

You are what you repeatedly do

Where your talents and the needs of the world cross; there lies your vocation.

No one praises happiness as one praises justice, but we call it a 'blessing,' deeming it something higher and more divine than things we praise.

For any two portions of fire, small or great, will exhibit the same ratio of solid to void; but the upward movement of the greater is quicker than that of the less, just as the downward movement of a mass of gold or lead, or of any other body endowed with weight, is quicker in proportion to its size.