The Quotes canon
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Browse all 10,075 quotes or apply filters in different categories to narrow your search.
Browse all 10,075 quotes or apply filters in different categories to narrow your search.
Alonzo1 quote
It's not what you know, it's what you can prove. — Alonzo · 2001Democritus1 quote
In truth we know nothing, for truth lies in the depth. — Democritus · 240Donald Rumsfeld1 quote
As we know, there are known knowns-there are things we know we know. We also know there are known unknowns-that is to say, we know there are some things we do not know. But there are also unknown unknowns, the ones we don’t know we don’t know. — Donald Rumsfeld · 2002John Locke1 quote
Let us then suppose the mind to be, as we say, white paper, void of all characters, without any ideas; how comes it to be furnished?... Whence has it all the materials of reason and knowledge? To this I answer, in one word, from experience. — John Locke · 1690John Ruskin1 quote
To know anything well involves a profound sensation of ignorance. — John Ruskin · 1856Socrates1 quote
Let us now suppose that in the mind of each man there is an aviary of all sorts of birds-some flocking together apart from the rest, others in small groups, others solitary, flying anywhere and everywhere... We may suppose that the birds are kinds of knowledge, and that when we were children, the receptacle was empty; whenever a man has gotten and detained in the enclosure a kind of knowledge, he may be said to have learned or discovered the thing which is the subject of the knowledge: and this is to know. — Socrates · 369 BCWilliam Thomson, Lord Kelvin1 quote
When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind: it may be the beginning of knowledge, but you have scarcely, in your thoughts, advanced to the stage of science. — William Thomson, Lord Kelvin · 1883