Long ailments wear out pain, and long hopes, joy.

To believe with certainty we must begin with doubting.

Have the courage to face a difficulty lest it kick you harder than you bargain for.

Science when well digested is nothing but good sense and reason.

To believe with certainty we must begin with doubting.

What is fame? The advantage of being known by people of whom you yourself know nothing, and for whom you care as little.