Cardinal signs (the initiators, born leaders, ambitious, good at starting things):

Aries, Cancer, Libra, Capricorn

Fixed signs (stability, steadiness, dependability, stubbornness):

Taurus, Leo, Scorpio, Aquarius

Mutable signs (flexible, resourceful, can adapt easily, open to change):

Gemini, Virgo, Sagittarius, Pisces