Behind the details of all the branches of Science we see the essence: Science is the study of laws of nature (with a view to make use of them for our benefit) which means everything in the nature follows certain laws which would further imply that humans also must definitely follow certain laws that contribute to welfare of their own and of others if they want to enjoy their lives.
Similarly, behind the details all the branches of religion we see the essence: All great religious figures such as Buddha, Jesus, Mohammed …were sent by God to restore the remembrance of God which would help people to be good citizens of their respective countries. Hence what they spoke was truth beneficial for the people in their respective contexts. Later, commercial minded followers added things to the original teachings which make a mess of everything giving a reason for modern readers to doubt the historicity of religious leaders. (Mathew 13:24-30; Acts 20:29, 30)