Sometimes you have to let go to see if there was anything worth holding onto.

One whose knowledge is confined to books and whose wealth is in the possession of others, can use neither his knowledge nor wealth when the need for them arises.

When learning is purposeful, creativity blossoms. When creativity blossoms, thinking emanates. When thinking emanates, knowledge is fully lit. When knowledge is lit, economy flourishes.

I think my greatest ambition in life is to pass on to others what I know.

Life consists in penetrating the unknown, and fashioning our actions in accord with the new knowledge thus acquired.

The only absolute knowledge attainable by man is that life is meaningless.