Why Do Some People Believe In Evolution?

Psalms 19:1 reads "The heavens declare the glory of God; and the firmament sheweth his handywork." Rom 1:20 says "For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse." Those two verses state what seems to be obvious, that the creation is evidence of a creator.  So why do some people still believe in evolution? ...Sir Arthur Keith (famous British evolutionist) said "Evolution is unproved and unprovable. We believe it because the only alternative is special creation which is unthinkable."Sir Julian Huxley (one of the world’s leading evolutionists) - "I suppose the reason we leaped at The Origin of Species was because the idea of God interfered with our sexual mores.”The late Dr. Wald, an ardent evolutionist, was no scientific "light weight." He was a professor of neurobiology at Harvard and received the Nobel Prize in Physiology for work in the neurophysiology of vision. Here's what he said: "There are only two possible explanations as to how life arose: Spontaneous generation arising to evolution or a supernatural creative act of God…There is no other possibility. Spontaneous generation was scientifically disproved 120 years ago by Louis Pasteur and others, but that just leaves us with only one other possibility…that life came as a supernatural act of creation by God, but I can't accept that philosophy because I do not want to believe in God. Therefore, I choose to believe in that which I know is scientifically impossible, spontaneous generation leading to evolution." ("Origin, Life and Evolution" in Scientific American, 1978)