A man ought to inquire and find out what he really and truly has an appetite for; what suits his constitution; and that, doctors tell him, is the very thing he ought to have in general. And so with books.

Egotism is the source and summary of all faults and miseries.

The deadliest sin were the consciousness of no sin

The end of man is action.

Coining "Dismal Science" as a nickname for Political Economy

Show me the person you honor, for I know better by that the kind of person you are. For you show me what your idea of humanity is.

Does it ever give thee pause that men used to have a soul? Not by hearsay alone, or as a figure of speech, but as a thruth that they knew and acted upon. Verily it was another world then, but yet it is a pity we have lost the tidings of our souls. We shall have to go in search of them again or worse in all ways shall befall us.