...for the shield may be as important for victory, as the sword or spear.

Light will be thrown on the origin of man and his history.

...I believe there exists, & I feel within me, an instinct for the truth, or knowledge or discovery, of something of the same nature as the instinct of virtue, & that our having such an instinct is reason enough for scientific researches without any practical results ever ensuing from them.

Our descent, then, is the origin of our evil passions!! The devil under form of Baboon is our grandfather.

If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week.

The plow is one of the most ancient and most valuable of man's inventions; but long before he existed the land was in fact regularly plowed, and still continues to be thus plowed by earthworms. It may be doubted whether there are many other animals which have played so important a part in the history of the world, as have these lowly organized creatures.

The young blush much more freely than the old but not during infancy, which is remarkable, as we know that infants at a very early age redden from passion.