There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question.

Carl Sagan

Carl Sagan

Profession: Astronomer
Nationality: American

Some suggestions for you :

Most of the people that I deal with are human. So I've had a lot of experience with that.

Science is a way of thinking much more than it is a body of knowledge.

Human beings have a demonstrated talent for self-deception when their emotions are stirred.

She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love.

Science carries us towards an understanding of how the world is, rather than how we would wish it to be.

It is very difficult to evolve by altering the deep fabric of life; any change there is likely to be lethal. But fundamental change can be accomplished by the addition of new systems on top of old ones.

We must surrender our skepticism only in the face of rock-solid evidence. Science demands a tolerance for ambiguity.

You humans have a certain talent for adaptability--at least in the short term.

Modern science has been a voyage into the unknown, with a lesson in humility waiting at every stop. Many passengers would rather have stayed home.

The idea that God is an oversized white male with a flowing beard, who sits in the sky and tallies the fall of every sparrow is ludicrous. But if by 'God,' one means the set of physical laws that govern the universe, then clearly there is such a God. This God is emotionally unsatisfying... it does not make much sense to pray to the law of gravity.

Dear Friend, Just a line to show that I am alive & kicking and going grand. It's a treat.

Are we willing to tolerate ignorance and complacency in matters that affect the entire human family?

MUCH OF HUMAN HISTORY can, I think, be described as a gradual and sometimes painful liberation from provincialism, the emerging awareness that there is more to the world than was generally believed by our ancestors.

The suppression of uncomfortable ideas may be common in religion and politics, but it is not the path to knowledge; it has no place in the endeavor of science.