I'm always tripped up by the eternal who am I?

“Most people believe not so much in truth as in things they wish were the truth.…”

“I move, therefore I am.”

“Music brings a warm glow to my vision, thawing mind and muscle from their endle…”

“كانَ الـأحب إلى قلبي .. وكُنت أخشى أن أَفقده ذاتَ يوم، ولذا كانَ عليّ أن أتخلى عنهُ بن…”