Who does not in some sort live to others, does not live much to himself.
He who falls obstinate in his courage, if he falls he fights from his knees.
Fame and tranquility can never be bedfellows.
For me, who only desire to become wise, not more learned or eloquent, these logical or Aristotelian dispositions of parts are of no use.
I care not so much what I am to others as what I am to myself. I will be rich by myself, and not by borrowing.
Miracles arise from our ignorance of nature, not from nature itself.