Every thing is of the nature of no thing.
Gaze steadfastly at things which, though far away, are yet present to the mind.
It is indifferent to me where I am to begin, for there shall I return again.
Give me a chance to create a fever and I will cure any disease.
You must learn all things, both the unshaken heart of persuasive truth, and the opinions of mortals in which there is no true warranty.
Change is an illusion.