Truth like a torch, the more 'tis shock, it shines..

Consummated science is positively humble..

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

In our natural body every part has a necessary sympathy with every other; and all together form, by their harmonious conspiration, a healthy whole..

There is a distinction, but no opposition, between theory and practice. Each to a certain extent supposes the other. Theory is dependent on practice;….

Metaphysics, in whatever latitude the term be taken, is a science, or complement of sciences, exclusively occupied with mind..

Be sober, and to doubt prepense, These are the sinews of good sense..

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

Read much, but not many works..

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 a….

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..

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