Modified from Lynn Fancher http://www.cod.edu/people/faculty/fancher/limits.htm Humankind has never devised a better tool for solving the mysteries of the universe than science. However, there are some kinds of questions for which scientific problem solving is unsuited. In other words, science has limitations.
There are areas for which science can't help us answer our questions. All of these have the same problem: The questions they present don't have testable answers. Since testability is so vital to the scientific process, these questions simply fall outside the venue of science.
Limitations of science include (but are not limited to):
Science can't answer questions about value. For example, there is no scientific answer to the questions, "Which of these flowers is prettier?" or "which smells worse, a skunk or a skunk cabbage?" And of course, there's the more obvious example, "Which is more valuable, one ounce of gold or one ounce of steel?" Our culture places value on the element gold, but if what you need is something to build a skyscraper with, gold, a very soft metal, is pretty useless. So there's no way to scientifically determine value.
Science can't answer questions of morality. The problem of deciding good and bad, right and wrong, is outside the determination of science. This is why expert scientific witnesses can never help us solve the dispute over abortion: all a scientist can tell you is what is going on as a fetus