I think therefore I exist.

Quote by Rene Descartes

Topics: Thinking Quotes

When I consider this carefully, I find not a single property which with certainty separates...

When I consider this carefully, I find not a single property which with certainty separates...

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

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

Perfect numbers like perfect men are very rare.

Perfect numbers like perfect men are very rare.

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

Illusory joy is often worth more than genuine sorrow.

Illusory joy is often worth more than genuine sorrow.

The first precept was never to accept a thing as true until I knew it...

The first precept was never to accept a thing as true until I knew it...

One cannot conceive anything so strange and so implausible that it has not already been...

One cannot conceive anything so strange and so implausible that it has not already been...

The reading of all good books is like a conversation with the finest minds of...

The reading of all good books is like a conversation with the finest minds of...

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...

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...

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.

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 am indeed amazed when I consider how weak my mind is and how prone...

I am indeed amazed when I consider how weak my mind is and how prone...

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...

If you would be a real seeker after truth, it is necessary that at least...

If you would be a real seeker after truth, it is necessary that at least...

The senses deceive from time to time, and it is prudent never to trust wholly...

The senses deceive from time to time, and it is prudent never to trust wholly...

One cannot conceive anything so strange and so implausible that it has not already been...

One cannot conceive anything so strange and so implausible that it has not already been...

Everything is self-evident.

Everything is self-evident.

I hope that posterity will judge me kindly, not only as to the things which...

I hope that posterity will judge me kindly, not only as to the things which...

Perfect numbers like perfect men are very rare.

Perfect numbers like perfect men are very rare.