There is no knowledge that is not power.

since no thief, however skillful, can rob one of knowledge, and that is why knowledge is the best and safest treasure to acquire.

Knowledge will forever govern ignorance.

No man's knowledge here can go beyond his experience.

There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.

Your life has a limit, but knowledge has none. If you use what is limited to pursue what has no limit, you will be in danger.

Our knowledge can only be finite, while our ignorance must necessarily be infinite.

We should not hoard knowledge; we should be free from our knowledge.

There are no limitations to the mind except those that we acknowledge.

Nothing that is mentally our own can ever be lost.

Science knows no country, because knowledge belongs to humanity

None of us can afford to stop learning or to check our curiosity about new things, or to lose our humility in the face of new situations.

Learning is the only thing the mind never exhausts, never fears and never regrets.

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