One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen.

Quote by Robert A Heinlein

Topics: Robert A Heinlein Quotes

Everything is theoretically impossible, until it is done.

Everything is theoretically impossible, until it is done.

Anyone who considers protocol unimportant has never dealt with a cat.

Anyone who considers protocol unimportant has never dealt with a cat.

Progress isn't made by early risers. It's made by lazy men trying to find easier...

Progress isn't made by early risers. It's made by lazy men trying to find easier...

One man's magic is another man's engineering. Supernatural is a null word.

One man's magic is another man's engineering. Supernatural is a null word.

A great artist can look at an old woman, portray her exactly as she is......

A great artist can look at an old woman, portray her exactly as she is......

To be matter of fact about the world is to blunder into fantasy -- and...

To be matter of fact about the world is to blunder into fantasy -- and...

Women will forgive anything. Otherwise, the race would have died out long ago.

Women will forgive anything. Otherwise, the race would have died out long ago.

An armed society is a polite society. Manners are good when one may have to...

An armed society is a polite society. Manners are good when one may have to...

To be matter-of-fact about the world is to blunder into fantasy - and dull fantasy...

To be matter-of-fact about the world is to blunder into fantasy - and dull fantasy...

I am free, no matter what rules surround me. If I find them tolerable, I...

I am free, no matter what rules surround me. If I find them tolerable, I...

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a...

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a...

The supreme irony of life is that hardly anyone gets out of it alive.

The supreme irony of life is that hardly anyone gets out of it alive.

Political tags - such as royalist, communist, democrat, populist, fascist, liberal, conservative, and so forth...

Political tags - such as royalist, communist, democrat, populist, fascist, liberal, conservative, and so forth...

Sex without love is merely healthy exercise.

Sex without love is merely healthy exercise.

Sex without love is merely healthy exercise.

Sex without love is merely healthy exercise.

For me, politeness is a sine qua non of civilization.

For me, politeness is a sine qua non of civilization.

It is a truism that almost any sect, cult, or religion will legislate its creed...

It is a truism that almost any sect, cult, or religion will legislate its creed...

Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an...

Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an...

Be wary of strong drink. It can make you shoot at tax collectors... and miss.

Be wary of strong drink. It can make you shoot at tax collectors... and miss.

A society that gets rid of all its troublemakers goes downhill.

A society that gets rid of all its troublemakers goes downhill.