I did then what I knew how to do. Now that I know better, I do better.

The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery.

If book knowledge made great investors, than the librarians would all be rich.

Knowledge is power. Sharing knowledge is the key to unlocking that power.

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

Knowledge is knowing a tomato is a fruit; wisdom is not putting it in a fruit salad.

Write what you know. That should leave you with a lot of free time.

Disseminating knowledge is the human duty, sharing it so that all can benefit.

I cannot teach anybody anything. I can only make them think

The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.

I was gratified to be able to answer promptly, and I did. I said I didn’t know.

Sharing your knowledge with others does not make you less important.

The larger the island of knowledge, the longer the shoreline of wonder.

It is good to rub, and polish our brain against that of others.

The advancement and diffusion of knowledge is the only guardian of true liberty.

I had to deny knowledge in order to make room for faith.

To attain knowledge, add things every day. To gain wisdom, remove things every day.

Knowledge, like air, is vital to life. Like air, no one should be denied it.

The value of knowledge depends on what else you know.