A friend's only gift is himself.
Nothing can be meaner than the anxiety to live on, to live on anyhow and in any shape.
The profoundest affinities are those most readily felt, and though a thousand later considerations may overlay and override them, they remain a background and standard for all happiness. If we trace them out we succeed.
Society is like the air, necessary to breathe but insufficient to live on.
Real unselfishness consists in sharing the interests of others.
There are three traps that strangle philosophy: The church, the marriage bed, and the professor's chair.