A good memory, which nature has endowed us with, causes things long past to seem present.

Medicine is the restoration of discordant elements.

All thoughts start from emotions.

Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.

Every action needs to be prompted by a motive. To know and to will are two operations of the human mind. Discerning, judging, deliberating are acts of the human mind.

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.

It is ordained that to the ambitious, who derive no satisfaction from the gifts of life and the beauty of the world, life shall be a cause of suffering, and they shall possess neither the profit nor the beauty of the world.