The branches work against eachother when it comes to laws. The legislative branch makes laws, but the President can veto those laws with a Presidential Veto. The legislative branch makes laws, but the judicial branch can declare those laws unconstitutional.
C. his comparison of moral courage to bravery in battle and intelligence
(Not sure, but I hope this helps)
Answer:
Newton discovered gravity. The discovery of gravity .. Newton argued that the main force in the universe, although it was very much clear to Newton that gravity basically affected all objects on Earth and including in space.