Many discoveries are reserved for ages still to come . . . . Our universe is a sorry little affair unless it has in it something for every age to investigate.
You can only acquire it successfully if you cease to feel any sense of shame.
Everything that exceeds the bounds of moderation has an unstable foundation.
Retirement without literary amusements is death itself, and a living tomb.
It is a rough road that leads to the heights of greatness.
Men love their country, not because it is great, but because it is their own.