“If half a century of life has taught me anything, it is this; No one can bring us peace but ourselves.” Dale Carnegie By E-MotivasyonWords of Science and Wisdom, Education and Training Words, Words of the Day, Quotes About Life, Words About People0 comments ▶Dr. Tayfun Topaloğlu Youtube Instagram: @drtayfuntopaloglu “If half a century of life has taught me anything, it is this; No one can bring us peace but ourselves.” Dale Carnegie