Know what you are talking about.

I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.

There is no authority who decides what is a good idea.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

To every action there is always an equal and opposite or contrary, reaction

Imagination is more important than knowledge.

My weapon is literature

What is now proved was once only imagined.

I cannot live without books.

It is possible to fly without motors, but not without knowledge and skill.

If I have seen further it is by standing on the shoulders of Giants.

Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country

Patience is a virtue, and I'm learning patience. It's a tough lesson.

If the facts don't fit the theory, change the facts.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

No power and no treasure can outweigh the extension of our knowledge.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

I decided to teach because I think that any person who studies philosophy has to be involved actively.

I have no special talents. I am only passionately curious.

If you want the present to be different from the past, study the past.

The only true wisdom is in knowing you know nothing.