Psychology is the science of the soul. Psyche is the soul in Greek.
So a nice joke can be a good thing for the soul.
Here are some
A long term investment is a short term investment that failed.
It was so cold today I saw a stockbroker with his hands in his own pockets.
I'm thinking of leaving my husband, complained the broker's wife. "All he ever does is stand at the end of the bed and tell me how good things are going to be."
Three econometricians went out hunting, and came across a large deer. The first econometrician fired, but missed, by a meter to the left. The second econometrician fired, but also missed, by a meter to the right. The third econometrician didn't fire, but shouted in triumph, "We got it! We got it!"
An economist is someone who doesn't know what he's talking about - and make you feel it's your fault.
They say that Christopher Columbus was the first economist. When he left to discover America, he didn't know where he was going. When he got there he didn't know where he was. And it was all done on a government grant.
It's like the tale of the roadside merchant who was asked to explain how he could sell rabbit sandwiches so cheap. "Well" he explained, "I have to put some horse-meat in too. But I mix them 50:50. One horse, one rabbit." [DARREL HUFF, How to lie with statistics]
The difference between an economist and a statistician: people believe what economists say about the future, but not what statisticians say about the past.