Adding to my selection of sayings (previously here, here and here;-) Not always very deep, but mostly quite nice.
You can’t wait for inspiration. You have to go after it with a club.
The future is here. It’s just not evenly distributed.
I try never to write more clearly than I am able to think.
There is no sense in being precise when you don’t even know what you are talking about.
If I’d listened to customers, I’d have given them a faster horse.
What everybody knows is frequently wrong.
Do not believe that it is very much of an advance to do the unnecessary three times as fast.