Read much, but not many works.

An instinct is an agent which performs blindly and ignorantly a work of intelligence and knowledge.

There are two sorts of ignorance: we philosophize to escape ignorance; we start from the one, we repose in the other; they are the goals from which and to which we tend; and the pursuit of knowledge is but a course between two ignorances, as human life is only a traveling from grave to grave.

Logic is the science of the laws of thought, as thought,--that is of the necessary conditions to which thought considered in itself is a subject.

A judgment is the mental act by which one thing is affirmed or denied of another.

Consummated science is positively humble.

The pursuit of knowledge is but a course between two ignorances, as human life is itself only a wayfaring from grave to grave.