In the fields with which we are concerned, knowledge comes only in flashes. The text is the thunder rolling long afterward.

Like ultraviolet rays memory shows to each man in the book of life a script that invisibly and prophetically glosses the text.

The more circumspectly you delay writing down an idea, the more maturely developed it will be on surrendering itself.

Of all the ways of acquiring books, writing them oneself is regarded as the most praiseworthy method.

To be happy is to be able to become aware of oneself without fright.

Work on good prose has three steps: a musical stage when it is composed, an architectonic one when it is built, and a textile one when it is woven.

The only way of knowing a person is to love them without hope.

Quotations in my work are like wayside robbers who leap out armed and relieve the stroller of his conviction.

There is no document of civilization which is not at the same time a document of barbarism.

The concept of progress must be grounded in the idea of catastrophe. That things are 'status quo' is the catastrophe

All human knowledge takes the form of interpretation.

The confidence essential to effective habit-making comes as a rule from knowledge of previous and related successes.

Holding on to grudges holds you back from achieving success.

Sometimes, one needs another pair of eyes to see things clearly.

I just got tired of being overweight and unfit, so I changed my diet from hamburgers to yogurt and muesli, and it seems to work.

I'm very politically active, but that has nothing to do with my charity.

There are some disguised falsehoods so like truths, that 'twould be to judge ill not to be deceived by them.

It is better to invert reality than to copy it.

Quality control is applicable to any kind of enterprise. In fact, it must be applied in every enterprise.

Apart from the mercy of God, there is no other source of hope for mankind.

Flying is the only active profession I could ever continue with enthusiasm after the War.