One of the greatest gifts adults can give - to their offspring and to their society - is to read to children.

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

There are so many more important things to think about than that elusive emotion called love.

The good news is at this point as I get older, the load has gotten heavier but my shoulders have gotten wider because I've gotten happier so it's a damn good thing.

My heart's broken,' he thought. 'If I feel this way my heart must be broken.

Every American has the right to feel safe in their schools, in their churches, in their movie theaters, and in their nightclubs.

The true face of the unions is not now a man in a hard hat as much as it is a woman in a classroom or in cleaning smocks.

The best antidote to stress is resilience... having the ability to respond to change or adversity proactively and resourcefully.

I don't have time, you know - I want to be able to get it [information] instantly on the internet and not have to think about it. Well, there is that phenomenon as well.

Law Number XX: In any given year, Congress will appropriate the amount of funding approved the prior year plus three-fourths of whatever change the administration requests, minus 4-percent tax.

Bill Cosby is one of America's most successful black performers.