He who is of calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.
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.