The Philosopher 9
Truth
(What does it even mean anyway?)
and truths that life holds. This theory relies much more on belief, opinion and thought than the first.
Finally, you have the skeptics. These are the people who are constantly questioning everything. They want to know how and why you know what you know and why that is the truth.
All are compelling arguments, but no matter where your belief lies, it is truly a difficult task to prove what you know to be true when it comes to epistemology (the study of knowledge). Everything is subject to question and needs to be backed up.
If one can prove what they know is true, then the world of philosophy would be extremely impressed.