(On what came first, the chicken or the egg)

Let’s get into a little philosophical talk ourselves. Let’s say evolution was responsible for the beginning, and let’s say the egg was the first to evolve (before the chicken). Why did it do that? Why would there be nothing, and over millions of years, nothing became simple organisms, then these organisms became an egg? I can understand that a fish evolved legs and lungs over millions of years--because he (and his necessary female help mate) wanted to breathe, and to walk on dry land. But why would a thoughtless egg appear first and then want to become a chicken? How and why did it evolve with a yolk, a white, and a shell shaped like . . . like and egg? If the egg was shaped with a rounded point at each end for ease-of-laying (a square egg would be painful), how did evolution know to make it that shape if there were never any chickens in the first place to know that an egg is made to be laid?

(there's even more fail where this came from)