We found in the course of our journey the convenience of having disencumbered ourselves, by laying aside whatever we could spare; for it is not to be imagined without experience, how in climbing crags and treading bogs, and winding through narrow and obstructed passages, a little bulk will hinder, and a little weight will burden; or how often a man that has pleased himself at home with his own resolution, will, in the hour of darkness and fatigue, be content to leave behind him everything but himself.

We suffer equal pain from the pertinacious adhesion of unwelcome images, as from the evanescence of those which are pleasing and useful.

Surely a long life must be somewhat tedious, since we are forced to call in so many trifling things to help rid us of our time, which will never return.

When there is no hope, there can be no endeavor.

There is in this world no real delight (excepting those of sensuality), but exchange of ideas in conversation.

Being reproached for giving to an unworthy person, Aristotle said, I did not give it to the man, but to humanity.

If a man has a science to learn he must regularly and resolutely advance.