I had a feeling once about Mathematics - that I saw it all. Depth beyond depth was revealed to me - the Byss and Abyss. I saw - as one might see the transit of Venus or even the Lord Mayor's Show - a quantity passing through infinity and changing its sign from plus to minus. I saw exactly why it happened and why the tergiversation was inevitable but it was after dinner and I let it go.

Any idiot can see something wrong. But can you see what is right?

I am sure that the mistakes of that time will not be repeated; we should probably make another set of mistakes.

"I hope, sir, that I will shoot your picture on your hundredth birthday." I don't see why not, young man. You look reasonably fit and healthy.

You have to run risks. There are no certainties in war. There is a precipice on either side of you - a precipice of caution and a precipice of over-daring.

I had a feeling once about mathematics - that I saw it all... but it was after dinner and I let it go.

Never run away from anything. Never!