Pan
Greek god of the pastures and protector of sheep and goats.
Pan was Dionysus' favorite, a roguish god with goat's legs and horns, and a man's upper body and head. His mother was so alarmed by his figure when he was born that she ran away and left him to be raised by nymphs. His father, who is unknown, later brought him to Mount Olympus to delight the gods.
Pan was drawn to nymphs, particularly Echo. In one legend, Pan was irritated that she did not reciprocate his feelings, so he made her able only to repeat things. Another nymph, named Syrinx, transformed into a bunch of rushes to escape Pan. Bitterly, he slashed down some of the rushes and made the syrinx, or pan pipes, a musical instrument capable of producing melodious harmonies to entice women, nymphs, and even Selene, the moon goddess whom he tried to tempt with high-quality sheep's wool.
Pan's temperament was usually joyful and raucous, but if something annoyed him, he could make both animals and men start sudden inexplicable feuds with each other. The word "panic" was created from this. He could even cause nightmares and stampedes. Pan helped create confusion when Zeus overthrew his father Cronus.
Extra notes:
When Pan frequently appears in art with Venus and Cupid, gods of love, the saying "love conquers all" is implied; pan is the word for "all" in Greek.