Nothing can be loved or hated unless it is first known.

No human investigation can be called real science if it cannot be demonstrated mathematically.

The study of what is excellent is food for the mind and body.

Love shows itself more in adversity than in prosperity; as light does, which shines most where the place is darkest.

We know more about the movement of celestial bodies than about the soil underfoot.

A beautiful body perishes, but a work of art dies not.

Life well spent is long.