Madara Uchiha

Madara Uchiha (うちはマダラ) was a legendary leader of the Uchiha clan, and was one of the main antagonists of the series. He founded Konoha alongside his rival, Hashirama Senju, with the intention of beginning an era of peace. When the two couldn't agree how to achieve that peace, they fought for control of the village and Madara was thought to have died. He rewrote his death and went into hiding to work on his plans to end world conflict. Unable to complete it in his natural life, he entrusted his knowledge and plans to Obito Uchiha shortly before his second death.

''This world is full of things that don't go as you wish. The longer you live the more you realise reality is just made of pain, suffering, and emptiness… Listen… In this world, whenever there is light, there are also shadows. As long as the concept of winners exist, there must also be losers. The selfish desire of wanting to maintain peace causes wars and hatred is born to protect love." - Madara Uchiha