Intellect is invisible to the man who has none.

Every child is in a way a genius; and every genius is in a way a child.

Intellect is a magnitude of intensity, not a magnitude of extensity.

Gaiety alone, as it were, is the hard cash of happiness; everything else is just a promissory note.

The majority of men... are not capable of thinking, but only of believing, and... are not accessible to reason, but only to authority.

If I maintain my silence about my secret it is my prisoner...if I let it slip from my tongue, I am ITS prisoner.

Pride works from within; it is the direct appreciation of oneself.