Narcissists believe their personality and appearance is superior to others. Symptoms of narcissism include focusing only on one's self, lacking guilt and an inability to empathize. Narcissistic people tend to be vain. A marriage being undermined by narcissism might benefit from therapy.
Trocar: A sharply pointed shaft, usually with a three-sided point. A trocar may be used within a cannula, a hollow tube, designed to be inserted into a vein, artery, bone marrow or body cavity. The word trocar is derived from the French trois (three) + carre (side). Last Editorial Review: 6/9/2016.
From Wikipedia, the free encyclopedia. A truism is a claim that is so obvious or self-evident as to be hardly worth mentioning, except as a reminder or as a rhetorical or literary device, and is the opposite of falsism. In philosophy, a sentence which asserts incomplete truth conditions for a proposition may be regarded as a truism. An example of such a sentence would be Under appropriate conditions, the sun rises..