Some dreamers demand that scientists only discover things that can be used for good.

The applause is a celebration not only of the actors but also of the audience. It constitutes a shared moment of delight.

In nation after nation, democracy has taken the place of autocracy.

Science exists, moreover, only as a journey toward troth. Stifle dissent and you end that journey.

For science must breathe the oxygen of freedom.

Instead, in the absence of respect for human rights, science and its offspring technology have been used in this century as brutal instruments for oppression.

Even in the world of molecules the civilising influence of modest restraints is a cause for rejoicing.

Science never gives up searching for truth, since it never claims to have achieved it.

Science is an enterprise that can only flourish if it puts the truth ahead of nationality, ethnicity, class and color.

Human dignity is better served by embracing knowledge.

Our assessment of socio-economic worth is largely a sham. We scientists should not lend ourselves to it - though we routinely do. We should, instead, insist on applying the criterion of quality.

You realise that trying to keep your distance from me will not lessen my affection for you, ” he said.

Powell’s face appeared on screen. “It’s true, the doomsday crowd is a little crazy, ” she said, looking thoughtful. “But that doesn’t mean they’re wrong.

Worry compounds the futility of being trapped on a dead-end street. Thinking opens new avenues.

The sad truth is that most evil is done by people who never make up their minds to be good or evil.

The cool blade Severs between coolness, apple-rind Compelling a recognition.

I'm a woman of very few words, but lots of action.

What can there be concerning outer space but ignorance?

We tend to idealize tolerance, then wonder why we find ourselves infested with losers and nut cases.

I have infinite capacity to do more work as long as you don't mind that my quality approaches zero.

The hatred of luxury is not an intelligent hatred. It implies a hatred of arts.