Which was rené descartes known for?
a. a new branch of mathematics called calculus and improved tools of astronomy
b. the theory of gravity and the three laws of motion
c. the cartesian coordinate system and the belief that mathematics can explain all of nature
d. the belief that observation and experimentation are necessary to acquire knowledge

confucius was a great thinker and teacher, and philosopher succeeded in laying the foundations beloved.

he many principles but waht   was speak about the relationships was the third .

the third important concept , the real man's idea. he is the man who lives up to the highest moral standards. man shows five virtues: in self, generosity, sincerity, perseverance, and benevolence. his relationship is described as follows: when a son is always loyal, as a father is just and gentle, as an administrator is loyal and loyal, and as a husband is honest and fair, and as a friend, he is faithful and languid. if everything is a true happiness conference, justice and harmony will rule the empire.

b.lincoln had the victory he wanted for emancipation