The most important thing is not to think very much about oneself. To investigate candidly the charge; but not fussily, not very anxiously. On no account to retaliate by going to the other extreme -- thinking too much.

Am I alone in my egotism when I say that never does the pale light of dawn filter through the blinds of 52 Tavistock Square but I open my eyes and exclaim, "Good God! Here I am again!" not always with pleasure, often with pain; sometimes in a spasm

We all indulge in the strange, pleasant process called thinking, but when it comes to saying, even to someone opposite, what we think, then how little we are able to convey!

In case you ever foolishly forget:
I am never not thinking of you.

Mental fight means thinking against the current, not with it. It is our business to puncture gas bags and discover the seeds of truth.

Masterpieces are not single and solitary births; they are the outcome of many years of thinking in common, of thinking by the body of the people, so that the experience of the mass is behind the single voice.