If the government is covering up knowledge of aliens, they are doing a better job of it than they do at anything else.

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.

Compared to Eternity, The seconds of "Now" are more valuable than all the money and valuables in the world combined.

Justice is the virtue we 'd rather have done unto others than practiced on ourselves.

Attitude is more important than the past, than education, than money, than circumstances, than what people do or say. It is more important than appearance, giftedness, or skill.

I can't change something that I've been all my life. But I can work to express myself and talk more.

The best educators I have met never stop asking questions. Some of them have taught for forty years and continue to be energized by new possibilities.

Repentance will not make you see Christ; but to see Christ will give you repentance.

I have sometimes wondered if the greatest desire of man is to be known and loved anyway.

Your life story would not make a good book. Don't even try.

Hello, I must be going, I cannot stay, I came to say, I must be going. I’m glad I came, but just the same, I must be going.

I don't have to convince everybody in the room. I just need a critical mass of the people in the room.