Anyone who has watched Mobile Suit Gundam Wing will know that there are three very significant people in Trowa's life that drastically changed his view of the world and of himself. They are even highlighted when Trowa regains his memories due to the shock the Zero system puts his brain through. Those people are Heero Yuy, Catherne Bloom and Quatre Raberba Winner.
The following essays are based on my interpretation of how Trowa likely viewed himself, how how he came to have the mindset he possessed before meeting these three people and how they changed his perceptions.