“One of the greatest and simplest tools to learn and grow more is to do more.” Washington Irving By E-MotivasyonWords of Science and Wisdom, Education and Training Words, Words to Action, Personal Development Quotes0 comments ▶Dr. Tayfun Topaloğlu Youtube Instagram: @drtayfuntopaloglu “One of the greatest and simplest tools to learn and grow more is to do more.” Washington Irving