Education alone can conduct us to that enjoyment which is, at once, best in quality and infinite in quantity.

If there is anything for which I would go back to childhood, and live this weary life over again, it is for the burning, exalting, transporting thrill and ecstasy with which the young faculties hold their earliest communion with knowledge.

Be careful never to retire to rest in a room not properly ventilated.

Man is improvable. Some people think he is only a machine, and that the only difference between a man and a mill is, that one is carried by blood and the other by water.

Superiority to circumstances is one of the most prominent characteristics of great men.

The most formidable attribute of temptation is its increasing power, its accelerating ratio of velocity. Every act of repetition increases power, diminishes resistance. It is like the letting out of waters-where a drop can go, a river can go. Whoever yields to temptation, subjects himself to the law of falling bodies.

The earth flourishes, or is overrun with noxious weeds and brambles, as we apply or withhold the cultivating hand. So fares it with the intellectual system of man.