A man finds in the productions of nature an inexhaustible stock of material on which he can employ himself, without any temptations to envy or malevolence, and has always a certain prospect of discovering new reasons for adoring the sovereign author of the universe.

Great works are performed, not by strength, but by perseverance. Those that walk with vigor, three hours a day, will pass in seven years a space equal to the circumference of the globe.

It is strange that there should be so little reading in the world, and so much writing. People in general do not willingly read, if they can have any thing else to amuse them.

Nobody can be taught faster than he can learn.

It was the peculiar artifice of Habit not to suffer her power to be felt at first. Those whom she led, she had the address of appearing only to attend, but was continually doubling her chains upon her companions; which were so slender in themselves, and so silently fastened, that while the attention was engaged by other objects, they were not easily perceived. Each link grew tighter as it had been longer worn; and when by continual additions they became so heavy as to be felt, they were very frequently too strong to be broken.

As any action or posture, long continued, will distort and disfigure the limbs, so the mind likewise is crippled and contracted by perpetual application to the same set of ideas.

My dear friend, clear your mind of can't.