Nature abhors annihilation.

Virtue is a habit of the mind, consistent with nature and moderation and reason.

There are more men ennobled by study than by nature.

Our character is not so much the product of race and heredity as of those circumstances by which nature forms our habits, by which we are nurtured and live.

Though nature be ever so generous, yet can she not make a hero alone. Fortune must contribute her part too and till both concur, the work cannot be perfected.