The greatest of all infidelities is the fear that the truth will be bad.

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.

To get power is to pray.

Smile to lighten up.

If you have the desire, passion and enthusiasm to do something, nothing in the world will stop you.

The world is drastically changing, but happiness will always remain a gift that can only be received from within.

[On Sting] He threw a sucker punch. There's the sucker who threw the punch. Him the the Bart Simpson hair doo.

Art and design are not luxuries, nor somehow incompatible with science and engineering.

But you can't muscle through a five-hour run that way; you have to relax into it like easing your body into a hot bath, until it no longer resists the shock and begins to enjoy it.

Cultivate poverty like a garden herb, like sage.

I was always told to avoid being famous just for being famous. That's something that has always stuck in my mind. I like to work. It helps if you like what you do.

Either in conflict with others or in harmony with them, we go through life like a runaway horse, unable to stop.