It is a common observation that a science first begins to be exact when it is quantitatively treated. What are called the exact sciences are no others than the mathematical ones.

Every new concept first comes to the mind in a judgment.

We do not really think, we are barely conscious, until something goes wrong.

The entire universe is perfused with signs, if it is not composed exclusively of signs.

The pragmatist knows that doubt is an art which hs to be acquired with difficulty.

It is... easy to be certain. One has only to be sufficiently vague.

My language is the sum total of myself.

The essence of belief is the establishment of a habit; and different beliefs are distinguished by the different modes of action to which they give rise.

It is not knowing, but the love of learning, that characterizes the scientific man.

The definition of definition is at bottom just what the maxim of pragmatism expresses.

We should chiefly depend not upon that department of the soul which is most superficial and fallible (our reason), but upon that department that is deep and sure, which is instinct.

I was wasting my life, always thinking about myself.

Living one floor below Paradise.

–We are all dying– she told me. –Even something of the immortal will die–“What?”–Meaning–

It is a very remarkable and significant fact that though no man is quite well or healthy yet every one believes practically that health is the rule & disease the exception.

When you decide to be the bestyou can be, don’t be surprisedif the circle of people youwant to spend your time withbecomes smaller.

I could try to care, but I ain't sure it's worth the bother.

Architecture is a continuing dialogue between generations which creates an environment across time.

Fear less, hope more. Eat less, chew more. Talk less, say more. Hate less, love more.

The better organized you are in the simple things, the more spontaneous and free you can be in the ore important things.

I'm fascinated by how you'll change your position so many times over a lifetime, but really what you're doing is occupying a series of positions on a landscape.