Language is only the instrument of science, and words are but the signs of ideas.

Excellence in any department can be attained only by the labor of a lifetime; it is not to be purchased at a lesser price.

Exercise is labor without weariness.

Mankind have a great aversion to intellectual labor; but even supposing knowledge to be easily attainable, more people would be content to be ignorant than would take even a little trouble to acquire it

Such is the constitution of man that labor may be styled its own reward; nor will any external incitements be requisite, if it be considered how much happiness is gained, and how much misery escaped, by frequent and violent agitation of the body

What does labor want? We want more schoolhouses and less jails; more books and less arsenals; more learning and less vice; more leisure and less greed; more justice and less revenge; in fact, more of the opportunities to cultivate our better natures,