I'm not talking about one-liner gags here but great short quotes which sum up a wider truth and which you find inspiring.
Twitter is great for these. And whilst a lot of people have tried it over the years/centuries, very few of them really stand up to the test of time. But here's a few of my personal favourites:
In the beginner's mind there are many possibilities, but in the expert's mind there are few. ~Shunryu Suzuki
I have discovered that all of mans unhappiness derives from only one source, not being able to sit quietly in a room. Blaise Pascal
When you cut into the present, the future leaks out. William S. Burroughs
You never have to change anything you got up in the middle of the night to write.— Saul Bellow
Fiction is the lie through which we tell the truth.
Where is the wisdom we have lost in knowledge? Where is the knowledge we have lost in information? ~ T.S. Eliot
There is nothing like returning to a place that remains unchanged to find the ways in which you yourself have altered. ~ Nelson Mandela
Genuine poetry can communicate before it is understood. — T.S. Eliot