“Art is the queen of all sciences communicating knowledge to all the generations of the world.”

On Translating Homer (1861)

Part 2: "The Habit of Truth", §11 (p. 45–46)
Science and Human Values (1956, 1965)
Context: In effect what Luther said in 1517 was that we may appeal to a demonstrable work of God, the Bible, to override any established authority. The Scientific Revolution begins when Nicolaus Copernicus implied the bolder proposition that there is another work of God to which we may appeal even beyond this: the great work of nature. No absolute statement is allowed to be out of reach of the test, that its consequence must conform to the facts of nature.
The habit of testing and correcting the concept by its consequences in experience has been the spring within the movement of our civilization ever since. In science and in art and in self-knowledge we explore and move constantly by turning to the world of sense to ask, Is this so? This is the habit of truth, always minute yet always urgent, which for four hundred years has entered every action of ours; and has made our society and the value it sets on man.

Original: (zh-CN) 什么是知识？自从有阶级的社会存在以来，世界上的知识只有两门，一门叫做生产斗争知识，一门叫做阶级斗争知识。自然科学、社会科学，就是这两门知识的结晶，哲学则是关于自然知识和社会知识的概括和总结。 note: "整顿党的作风"
Source: "Rectify the Party's Style of Work" (1942)

Source: The Walking Drum (1984), Ch. 25
Context: I am merely a seeker after knowledge, taking the world for my province, for it seems all knowledge is interrelated, and each science is dependent to some extent on the others. We study the stars that we may know more about our earth, and herbs that we may know medicine better.

Source: Leonardo's Notebooks

Introduction to the Everyman's Library edition of The Foundation Trilogy by Isaac Asimov, p. viii.

Source: Address on Laying the Cornerstone of the Bunker Hill Monument (1825), p. 74

Source: Faith vs. Fact (2015), p. 39

Google It: Total Information Awareness, 2016