It is not enough to have a good mind; the main thing is to use it well. Read Summary
An optimist may see a light where there is none, but why must the pessimist always run to blow it out? Read Summary
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. Read Summary
Whenever anyone has offended me, I try to raise my soul so high that the offense cannot reach it. Read Summary
Each problem that I solved became a rule, which served afterwards to solve other problems. Read Summary
The two operations of our understanding, intuition and deduction, on which alone we have said we must rely in the acquisition of knowledge. Read Summary
In order to improve the mind, we ought less to learn, than to contemplate. Read Summary
I think; therefore I am. Read Summary
A state is better governed which has few laws, and those laws strictly observed. Read Summary
The reading of all good books is like a conversation with the finest minds of past centuries. Read Summary