Investigate what is, and not what pleases.

Things which matter most must never be at the mercy of things which matter least.

It is the color closest to light. In its utmost purity it always implies the nature of brightness and has a cheerful, serene, gently stimulating character. Hence, experience teaches us that yellow makes a thoroughly warm and comforting impression.

Whenever I hear people talking about liberal ideas, I am always astounded that men should love to fool themselves with empty sounds. An idea should never be liberal; it must be vigorous, positive, and without loose ends so that it may fulfill its divine mission and be productive.

Not art and science only, but patience will be required for the work.

Talent is nurtured in solitude; character is formed in the stormy billows of the world.

A man doesn't learn to understand anything unless he loves it.