Topics / knowledge

Quotes about knowledge

What we know and how we know it.

Checked quotes about knowledge

17 quotes with a known source.

Imagination is more important than knowledge.
Source: Interview with George Sylvester Viereck, The Saturday Evening Post (26 October 1929)
Science without religion is lame, religion without science is blind.
Source: Science, Philosophy and Religion: A Symposium (1941)
The eternal mystery of the world is its comprehensibility.

Often polished into "The most incomprehensible thing about the world is that it is comprehensible."

Source: "Physics and Reality", Journal of the Franklin Institute (1936)
I, at any rate, am convinced that He does not throw dice.

The origin of the shorthand "God does not play dice".

Source: Letter to Max Born (4 December 1926)
AristotleSourced
All men by nature desire to know.
Source: Metaphysics, Book I, ch. 1
ConfuciusSourced
When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it — this is knowledge.
Source: Analects 2.17, tr. James Legge
What do I know?
Source: His motto — "Que sais-je?" — Essays, Book II, ch. 12 (1580)
Ye were not made to live like unto brutes, but for pursuit of virtue and of knowledge.
Source: Inferno XXVI.119–120, tr. H. W. Longfellow
Knowledge itself is power.
Source: Meditationes Sacrae (1597) ("Ipsa scientia potestas est")
I think, therefore I am.
Source: Discourse on the Method, Part IV (1637)
A little learning is a dang'rous thing.
Source: An Essay on Criticism (1711)
Whoever does not know foreign languages knows nothing of his own.
Source: Maxims and Reflections (1833)
Marie CurieAttributed
Nothing in life is to be feared, it is only to be understood.
Source: Attributed in later collections; no original source located
If I have seen further it is by standing on the shoulders of Giants.

An old image, used since the 12th century.

Source: Letter to Robert Hooke (5 February 1676)
The good life is one inspired by love and guided by knowledge.
Source: What I Believe (1925)
Carl SaganSourced
Extraordinary claims require extraordinary evidence.

Sagan popularised it; similar wording was used earlier by Marcello Truzzi.

Source: Cosmos, episode 12 (1980)
The first principle is that you must not fool yourself — and you are the easiest person to fool.
Source: "Cargo Cult Science", Caltech commencement address (1974)

Famous, but not theirs

Quotes about knowledge that are usually credited to the wrong person.

Mathematics is the language in which God has written the universe.

The real words: In The Assayer (1623) he wrote that the book of the universe "is written in the language of mathematics" — God is not in the sentence.

Nikola TeslaNot theirs
If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.

Actually: No source in Tesla's articles, patents, interviews or autobiography has been found.

Carl SaganNot theirs
Somewhere, something incredible is waiting to be known.

Actually: Journalist Sharon Begley, describing Sagan in Newsweek (1977).

If you think you understand quantum mechanics, you don't understand quantum mechanics.

The real words: In The Character of Physical Law (1965) he said: "I think I can safely say that nobody understands quantum mechanics."