Someone told me that each equation I included in the book would halve the sales.

Time can behave like another direction in space under extreme conditions.

Intelligence is the ability to adapt to change.

So remember to look up at the stars and not down at your feet. Try to make sense of what you see and hold on to that childlike wonder about what makes the universe exist.

The thing about smart people is that they seem like crazy people to dumb people.

It is all right to make mistakes; nothing is perfect because with perfection, we would not exist.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

People won't have time for you if you are always angry or complaining.

It is reasonable to ask who or what created the universe, but if the answer is God, then the question has merely been deflected to that of who created God.

It is very important for young people keep their sense of wonder and keep asking why.

The development of full artificial intelligence could spell the end of the human race.

God was inviting me to go on Hajj, but before that I needed to settle my debts. Muslims may only embark on their pilgrimage if they are debt-free or at least have made an arrangement for repayment.

It’s not the people you fire who make your life miserable. It’s the people you don’t.

Languages are the pedigree of nations.

Downloading a Tamagotchi egg onto my phone is possibly the loudest my biological clock has ever ticked.

We will have a peace dividend to spend on rebuilding America, beginning with our American inner cities. We're going to rebuild them, for once and for all.

Chocolates and cakes are the biggest problem I have. That is why I punish myself at the gym because I know I can't stop myself from eating what I want. I call it eating your cake and having it.

The essence of leadership is the capacity to build and develop the self-esteem of the workers.

My task is becoming more and more delicate, while the difficulties increase constantly.

without music he felt aimless and adrift.

It takes a strong man to accept somebody else's children and step up to the plate another man left on the table.