ALTERNATION n.
The reciprocal succession of things in time or place; the act of following and being followed by turns; alternate succession, performance, or occurrence; as, the alternation of day and night, cold and heat, summer and winter, hope and fear.
AMBITION n.
an inordinate, desire for preferment, honor, superiority, power, or the attainment of something. Cromwell, I charge thee, fling a way ambition: By that sin fell the angels. Shak. The pitiful ambition of possessing five or six thousand more acres. Burke.