Probability but no truth, facility but no freedom--it is owing to these two fruits that the tree of knowledge cannot be confused with the tree of life.
The life of a thinking man will probably be divided into two parts -- the first in which he desires to exterminate modern thinkers, and the second in which he desires to watch them exterminating each other. ... Suppose, for instance, there is an old story and a new skeptic who is skeptical of the story. We have only to wait a little while for a yet newer skeptic who is skeptical of the skeptic. He will probably find the old notion actually a help in his new notion. This process is an abstract truth applying to anything, apart from agreement or disagreement.
It is not insult from another that causes you pain. It is the part of your mind that agrees with the insult. Agree only with the truth about you, and you are free.
Truth is compared in Scripture to a streaming fountain; if her waters flow not in perpetual progression, they sicken into a muddy pool of conformity and tradition.
Why should you renounce your right to traverse the star-lit deserts of truth, of the premature comforts of an acre, house, and barn? Truth also has its roof, and bed, and board.