Men and women range themselves into three classes or orders of intelligence; you can tell the lowest class by their habit of always talking about persons; the next by the fact that their habit is always to converse about things; the highest by their preference for the discussion of ideas.

Men are made uneasy; they flinch; they cannot bear the sudden light; a general restlessness supervenes; the face of society is disturbed, or perhaps convulsed; old interests and old beliefs have been destroyed before new ones have been created. These symptoms are the precursors of revolution; they have preceded all the great changes through which the world has passed.

Society prepares the crime; the criminal commits it.

The faculty of art is to change events; the faculty of science is to foresee them. The phenomena with which we deal are controlled by art; they are predicted by science.

In 1776, the Americans laid before Europe that noble Declaration, which ought to be hung up in the nursery of every king, and blazoned on the porch of every royal palace

First doubt, then inquire, then discover. This has been the process with all our great thinkers.

That the system of morals propounded in the New Testament contained no maxim which had not been previously enunciated, and that some of the most beautiful passages in the apostolic writings are quotations from Pagan authors, is well known to every scholar... To assert that Christianity communicated to man moral truths previously unknown, argues on the part of the asserted either gross ignorance or wilful fraud.