How can you prove whether at this moment we are sleeping, and all our thoughts are a dream; or whether we are awake, and talking to one another in the waking state?
Necessity, who is the mother of our invention.
Courage is a kind of salvation.
Each man is capable of doing one thing well. If he attempts several, he will fail to achieve distinction in any.
Love - a grave mental disease.
We ought to fly away from earth to heaven as quickly as we can; and to fly away is to become like God, as far as this is possible; and to become like him is to become holy, just, and wise.