Time travel may be possible, but it is not practical.

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.

Her eyes, full of ancient, sacred wisdom. Her bones, deposits of inherited bravery. She is a proud descendant of strong, courageous women who went to the stakes fighting for their truths.

Reading is dreaming with eyes wide open

While some of us act without thinking, too many of us think without acting.

Most people, faced with two difficult choices, prefer not to choose at all.

If your train's on the wrong track every station you come to is the wrong station.

If you play it safe, middle of the road with all the right notes, you might win. If you are unique and have too much personality, you might easily score a '0' in competition.

Faithfulness to the past can be a kind of death above ground. Writing of the past is a resurrection; the past then lives in your words and you are free.

Human nature is fond of novelty.

The real secret to a life of abundance is to stop spending your days searching for security and to start spending your time pursuing opportunity.

It's such a wonderful feeling to watch a child discover that reading is a marvelous adventure rather than a chore.