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

Read much, but not many works.

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.

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

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

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

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

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

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

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

Consummated science is positively humble.

I liked my face. Ethan liked my face. A lot of people liked my face. Besides, makeup was really just glorified face paint.

The church is the primary arena in which we learn that glory does not consist in what we do for God but in what God does for us.

Inner peace is a quiet evening moonlight walk in the soft falling snow of our minds

There's a reason why the NRA's not here. They're just down the street. And since this is the main reason they exist, you'd think that they'd be prepared to have a debate with a president.

I'm in good form, taking no interest in things, neglecting clothes, meals, company, and feeling calm and stable as I write.

I'm not for amnesty. I've never been for amnesty, will never be for amnesty.

A truly free society is based on a vision of respect for people and what they value.

In actual life I am a grumpy old bag.

I'm an old man now. I can't believe it. I'm listening to all sorts because I'm producing people.

In one century, we've added 28 years to our average life span - a change so rapid that our brains couldn't possibly have evolved to accommodate it.