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

You just keep pushing. You just keep pushing. I made every mistake that could be made. But I just kept pushing.

When I turn my mind’s eye upon myself, I understand that I am a thing which is incomplete and dependent on another and which aspires without limit to ever greater and better things…

Doubt is the origin of wisdom.

It is not enough to have a good mind; the main thing is to use it well.

I took especially great pleasure in mathematics because of the certainty and the evidence of its arguments.

Mind and soul of the man is entirely different from the body.

So far, I have been a spectator in this theatre which is the world, but I am now about to mount the stage, and I come forward masked.

With me, everything turns into mathematics.

In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things

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

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

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

I think; therefore I am.

To live without philosophizing is in truth the same as keeping the eyes closed without attempting to open them.

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

Bad books engender bad habits, but bad habits engender good books.

If you’re not stubborn, you’ll give up on experiments too soon. And if you’re not flexible, you’ll pound your head against the wall and you won’t see a different solution to a problem you’re trying to solve.

The problem isn’t that Johnny can’t read. The problem isn’t even that Johnny can’t think. The problem is that Johnny doesn’t know what thinking is; he confuses it with feeling.

The problem of power is how to achieve its responsible use rather than its irresponsible and indulgent use; of how to get men of power to live for the public rather than off the public.

One thing you gotta know about me is I have absolutely no filter. I have no problem saying what the hell I think of someone.

The single biggest problem in communication is the illusion that it has taken place.

Some people talk to animals. Not many listen though. That’s the problem.

Your attitude towards problems, difficulties, and adversities is the most important factor in overcoming them.

My lips never know my problem they just always smile