When stocks are attractive, you buy them. Sure, they can go lower. I've bought stocks at $12 that went to $2, but then they later went to $30. You just don't know when you can catch the bottom.
怀疑只能由行动来回答。
人生短暂，过着过着你就没了，明白么？
"Books are like a mirror. If an ass looks in, you can't expect an angel to look out."