A man's liberties are none the less aggressed upon because those who coerce him do so in the belief that he will be benefited.

There is a principle which is a bar against all information, which cannot fail to keep a man in everlasting ignorance-that principle is contempt prior to investigation.

The great aim of education is not knowledge but action.

The wise man must remember that while he is a descendant of the past, he is a parent of the future.

The society exists for the benefit of its members; not its members for the benefit of the society.

No one can be perfectly free till all are free; no one can be perfectly moral till all are moral; no one can be perfectly happy till all are happy.

All Socialism involves slavery.

Hero-worship is strongest where there is least regard for human freedom.

This survival of the fittest implies multiplication of the fittest.

Be bold, be bold, and everywhere be bold.

Civilization is a progress from an indefinite, incoherent homogeneity toward a definite, coherent heterogeneity.

This is the opposite of the free market.

Public loyalty results in private leverage.

Never let another man put fear in your heart.

What were several fewer species of animals compared with a hundred-mile advance and another medal on another general?

Without my relatives, I am but a thread; together, we form a colorful and elaborate Persian carpet.

I finished reading High Output Management by Andrew Grove, which had such valuable insights for leaders that I've been forcing managers at Duolingo to read the book.

The brain is closer to the skull.

I was really interested in collecting insects.

Still alive? (Randy) No. I’m a walking corpse. Can’t you tell? (Steele)