"Those who stand for nothing fall for anything."
- Alexander Hamilton
"The Church says that the Earth is flat, but I know that it is round. For I have seen the shadow on the moon and I have more faith in the Shadow than in the Church."
- Ferdinand Magellan
"It is important that students bring a certain ragamuffin, barefoot, irreverence to their studies; they are not here to worship what is known, but to question it."
- Jacob Chanowski
"The universe is full of magical things, patiently waiting for our wits to grow sharper."
- Eden Phillpotts
"He who asks a question is a fool for five minutes; he who does not ask a question remains a fool forever."
- Chinese Proverb
"You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions."
- Naguib Mahfouz
"Wisdom begins in wonder."
- Socrates
"The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd."
- Bertrand Russell
"If an elderly but distinguished scientist says that something is possible he is almost certainly right, but if he says that it is impossible he is very probably wrong."
- Arthur C. Clark
"Ignorance more frequently begets confidence than does knowledge: it is those who know little and not those who know much, who so positively assert that this or that problem will never be solved by science."
- Charles Darwin
"Insight, untested and unsupported, is an insufficient guarantee of truth."
- Bertrand Russell
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