It is the nature of truth in general, as of some ores in particular, to be richest when most superficial.

If you wish to forget anything on the spot, make a note that this thing is to be remembered.

I call to mind flatness and dampness; and then all is madness - the madness of a memory which busies itself among forbidden things.

The past is a pebble in my shoe.

Deep into that darkness peering, long I stood there, wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before.

Read this and thought of you: Through joy and through sorrow, I wrote. Through hunger and through thirst, I wrote. Through good report and through ill report, I wrote. Through sunshine and through moonshine, I wrote. What I wrote it is unnecessary to say. ~ Edgar Allen Poe

As a poet and as a mathematician, he would reason well; as a mere mathematician, he could not have reasoned at all.