“Change is the law of life. And those who look only to the past or present are certain to miss the future.”

As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them.

To those whom much is given, much is expected.

There can be no progress if people have no faith in tomorrow.

Hold fast to the best of the past and move fast to the best of the future.

We must find time to stop and thank the people who make a difference in our lives.

We are not here to curse the darkness, but to light the candle that can guide us through that darkness to a safe and sane future.

Anyone who can solve the problems of water will be worthy of two Nobel prizes – one for peace and one for science.

If not us, who? If not now, when?

We must use time as a tool, not as a couch.

Sometimes party loyalty asks too much.

The rising tide lifts all the boats.

The world is very different now. For man holds in his mortal hands the power to abolish all forms of human poverty, and all forms of human life.

So long as freedom from hunger is only half achieved, so long as two thirds of the nations have food deficits, no citizen, no nation can afford to be satisfied.

The goal of education is the advancement of knowledge and the dissemination of truth.

If we cannot now end our differences, at least we can help make the world safe for diversity.

If a free society cannot help the many who are poor, it cannot save the few who are rich.

Women overrate the influence of fine dress and the latest fashions upon gentlemen; and certain it is, that the very expensiveness of such attire frightens the beholder from all ideas of matrimony.

Claiming certainty without corroborating evidence is stupid.

I’m certainly not into money and prestige. For me there is simply nothing more exciting than people involved in the creation of great products. That is what drives me.

Certainly, last year we did an episode about the census and sampling versus a direct statistic. You just said the word ‘census’, and people fall asleep.

In these matters the only certainty is that nothing is certain.

There are certain things I want to keep to me. I don’t discuss my private life.

Science is the outcome of being prepared to live without certainty and therefore a mark of maturity. It embraces doubt and loose ends.

There is so many things wrong horribly wrong in this world but I know with certainty that you are not one of them.