When I consider this carefully, I find not a single property which with certainty separates the waking state from the dream. How can you be certain that your whole life is not a dream?

Quote by Rene Descartes

Topics: Dreams Quotes

I think therefore I exist.

I think therefore I exist.

When it is not in our power to follow what is true, we ought to...

When it is not in our power to follow what is true, we ought to...

It is only prudent never to place complete confidence in that by which we have...

It is only prudent never to place complete confidence in that by which we have...

The greatest minds, as they are capable of the highest excellencies, are open likewise to...

The greatest minds, as they are capable of the highest excellencies, are open likewise to...

There is nothing so strange and so unbelievable that it has not been said by...

There is nothing so strange and so unbelievable that it has not been said by...

Perfect numbers like perfect men are very rare.

Perfect numbers like perfect men are very rare.

Except our own thoughts, there is nothing absolutely in our power.

Except our own thoughts, there is nothing absolutely in our power.

Except our own thoughts, there is nothing absolutely in our power.

Except our own thoughts, there is nothing absolutely in our power.

In order to improve the mind, we ought less to learn, than to contemplate.

In order to improve the mind, we ought less to learn, than to contemplate.

The greatest minds are capable of the greatest vices as well as of the greatest...

The greatest minds are capable of the greatest vices as well as of the greatest...

Common sense is the best distributed thing in the world, for everyone thinks he is...

Common sense is the best distributed thing in the world, for everyone thinks he is...

Of all things, good sense is the most fairly distributed: everyone thinks he is so...

Of all things, good sense is the most fairly distributed: everyone thinks he is so...

Everybody thinks himself so well supplied with common sense that even those most difficult to...

Everybody thinks himself so well supplied with common sense that even those most difficult to...

Illusory joy is often worth more than genuine sorrow.

Illusory joy is often worth more than genuine sorrow.

The two operations of our understanding, intuition and deduction, on which alone we have said...

The two operations of our understanding, intuition and deduction, on which alone we have said...

I am accustomed to sleep and in my dreams to imagine the same things that...

I am accustomed to sleep and in my dreams to imagine the same things that...

Nothing is more fairly distributed than common sense: no one thinks he needs more of...

Nothing is more fairly distributed than common sense: no one thinks he needs more of...

Each problem that I solved became a rule, which served afterwards to solve other problems.

Each problem that I solved became a rule, which served afterwards to solve other problems.

I have always grown from my problems and challenges, from the things that don't work...

I have always grown from my problems and challenges, from the things that don't work...

The greatest problem with women is how to contrive that they should seem our equals

The greatest problem with women is how to contrive that they should seem our equals