I don't think necessity is the mother of invention. Invention, in my opinion, arises directly from idleness, possibly also from laziness - to save oneself trouble.

Never do anything yourself that others can do for you.

Nurses - nurses, you'm all the same. Full of cheerfulness over other people's troubles.

There is no greater mistake in life than seeing things or hearing them at the wrong time.

Writing is a great comfort to people like me, who are unsure of themselves and have trouble expressing themselves properly.

These little grey cells. It is up to them.

Is there ever any particular spot where one can put one's finger and say, "It all began that day, at such a time and such a place, with such an incident?