Once there was a scientist who decided to go on a river tour. He hired a boatman to take him in this tour.
In the middle of the river, the scientist started asking the boatman: Do you know anything about biology? Boatman: No, Scientist: Then you have wasted half of your life.
The scientist asked again: Do you know anything about geology? Boatman: No, Scientist: Then you have wasted half of your life. The scientist asked: Do you know anything about archaeology? Boatman: No. Scientist: then you have wasted half of your life.
Something was wrong with the boat and it started sinking. Boatman: Sir, do you know anything about Swimminology? Scientist: No. Boatman: Then you have wasted ALL your life!

Ha Ha Ha