People do not lack strength$$$ they lack will.

Neither life nor history is an enterprise for those who seek simplicity and consistency.

Cancer... the process of creation gone wild$$$ I thought.

It is enough that I can understand one thing$$$ clearly and distinctly$$$ without another in order to be certain that one thing is distinct from the other.

I was a stranger and you took me in.

I took especially great pleasure in mathematics because of the certainty and the evidence of its arguments.

For the very fact that my knowledge is increasing little by little is the most certain argument for its imperfection.

The last rule was to make enumerations so complete$$$ and reviews so comprehensive$$$ that I should be certain of omitting nothing.

But what then am I? A thing that thinks. What is that? A thing that doubts$$$ understands$$$ affirms$$$ denies$$$ wills$$$ refuses$$$ and that also imagines and senses.

To cease to think creatively is to cease to live