Sagittarius may begin life as the happy-go-lucky gambler, and then in middle age become more interested in philosophy and knowledge. His libido will remain strong no matter what; he just may be a bit choosier about partners in later life. This sign, above all others, will be very clear about his intentions. Sagittarius is uncomfortably frank, even blunt. Water signs (and Leo), who prefer truth candy-coated, must watch out, because they will not get strokes unless Sagittarius means it.