To understand this for sense it is not required that a man should be a geometrician or a logician, but that he should be mad.

From whence it happens, that they which trust to books, do as they that cast up many little sums into a greater, without considering whether those little sums were rightly cast up or not; and at last finding the error visible, and not mistrusting their first grounds, know not which way to clear themselves; but spend time in fluttering over their books, as birds that entering by the chimney, and finding themselves enclosed in a chamber, flutter at the false light of a glass window, for want of wit to consider which way they came in.

If I read as many books as most men do, I would be as dull-witted as they are.

Science is the knowledge of consequences, and dependence of one fact upon another.

When it happeneth that a man signifieth unto us two contradictory opinions whereof the one is clearly and directly signified, andthe other either drawn from that by consequence, or not known to be contradictory to it; then (when he is not present to explicate himself better) we are to take the former of his opinions; for that is clearly signified to be his, and directly, whereas the other might proceed from error in the deduction, or ignorance of the repugnancy.

In sum, all actions and habits are to be esteemed good or evil by their causes and usefulness in reference to the commonwealth, and not by their mediocrity, nor by their being commended. For several men praise several customs, and, contrarily, what one calls vice, another calls virtue, as their present affections lead them.

Reason is the Soul of the Law.