Except for children (who don't know enough not to ask the important questions), few of us spendtime wondering why nature is the way it is . . .
Source: Introduction to A Brief History of Time, by Stephen Hawking.
-- Carl Sagan, (Nov 9 1934-1996), US astronomer; He provided insight in the origin of life by producing amino acids in a mixture of chemicals irradiated by ultraviolet light; wrote Contact.