What is The Leibniz Cosmological Argument or The Contingency Argument or The Principle of Sufficient Reason?
Leibniz was a German philosopher, mathematician, theologian, and scientist, whose achievements included the invention of calculus.
The Principle of Sufficient Reason states that everything must have a reason or a cause.
The principle has a variety of expressions, all of which are perhaps best summarized by the following:
- For every entity X, if X exists, then there is a sufficient explanation for why X exists.
- For every event E, if E occurs, then there is a sufficient explanation for why E occurs.
- For every proposition P, if P is true, then there is a sufficient explanation for why P is true.
Source: Wikipedia
Apologetics 