An overly pragmatic attitude is not productive on the long run.

Listening a cultivated person of today that jokes and almost boasts about his scientific ignorance, is as sad as listening a scientist that boasts about not having read any poem.

I worry that free imagination is overvalued, and I think this carries risks.

Don't trust your teachers.

Here, on the edge of what we know, in contact with the ocean of the unknown, shines the mystery and beauty of the world. And it’s breathtaking.

What does what we know or don't know have to do with the laws that govern the world?

Once again, the world seems to be less about objects than about interactive relationships.

Time is information we don't have. Time is our ignorance.

Life on Earth gives only a small taste of what can happen in the universe.

To the very last, the desire to challenge oneself and understand more. And to the very last: doubt.

What are we, in this boundless and glowing world?

Jesus did not die just to save you from hell. He paid the price to give you all of heaven.

It is not only the most difficult thing to know oneself but the most inconvenient one too.

We are about half a century away from being ecologically and economically bankrupt because of global warming

Democracy is never a thing done. Democracy is always something that a nation must be doing.

We can control our lives by controlling our perceptions.

Technology's always changing. There was a time where oil painting was a new technology. That changed painting.

I want more from David Beckham. I want him to improve on perfection.

The kingdoms' people were at the mercy of the natures of those who rose to be their rulers. It was a gamble, and the current generation did not make for a winning hand.

Only three things happen naturally in organizations: friction, confusion, and underperformance. Everything else requires leadership.

I have come not to disturb or destroy any faith, but to confirm each in his own faith - so that the Christian becomes a better Christian, the Muslim, a better Muslim, and the Hindu, a better Hindu.