Morality is seldom a safe guide for human conduct.

To every separate person a thing is what he thinks it is – in other words, not a thing, but a think.

Helping other people is a drug so dangerous that there is no cure short of total abstention.

It is interesting to note that everyone has a different take on the world, a different opinion, and given the same inputs have completely different outputs.

If they don't depend on true evidence, scientists are no better than gossips.

The body, then, has a mind of its own. It must follow, then, that the Mind has a body of its own, even if it’s like nothing that we can see around us, or have ever seen.

On the whole, I think you should write biographies of those you admire and respect, and novels about human beings who you think are sadly mistaken.

An unjust punishment is never forgotten.

A word of advice. If, as a young man, student, you are tormented by a desire for women, it is best to get out into the fresh air as much as possible.

A good book is the precious life-blood of a master-spirit, embalmed and treasured up on purpose to a life beyond life, and as such it must surely be a necessary commodity.

Behind their dark glass, the mad own nothing.

The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.

Good design is thorough, down to the last detail.

The budget was unlimited, but I exceeded it.

Sorrow in the tongue will talk itself cured, if you give it a chance; but sorrow in the eyes has a wicked, wicked way now and then of leaking into the brain.

Be yourself. No one else can.

To that there is an answer.

Borrowing and spending is not the way to prosperity.

There is only one justification for universities, as distinguished from trade schools. They must be centers of criticism.

I found out that the things that hurt us the most can become the fuel and the catalyst that propel us toward our destiny. It will either make you bitter or it will make you better.

To me, being in your prime means playing your best and feeling your best, too.