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.

What is important is not the quantity of your knowledge but its quality. You can know many things without knowing the most important.

The really important thing is not to live, but to live well. And to live well meant, along with more enjoyable things in life, to live according to your principles.

Knowledge is a tangible asset, quite often the most important tool in your work.

When you realize who you live for, and who's important to please, a lot of people will actually start living. I am never going to get caught up in that. I'm gonna look back on my life and say that I enjoyed it - and I lived it for me.