Truth was always but the daughter of time.

The knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.

The body of the earth is of the nature of a fish... because it draws water as its breath instead of air.

Music cannot be called otherwise than the sister of painting, for she is dependent upon hearing, a sense second to sight, and her harmony is composed of the union of its proportional parts sounded simultaneously, rising and falling in one or more harmonic rhythms.

I have from an early age abjured the use of meat, and the time will come when men such as I will look upon the murder of animals as they now look upon the murder of men.

The knowledge of all things is possible

For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.