Tweet Those who know do not speak, those who speak do not know. Quote by Lao Tzu. You May Also Like...The only true wisdom is in knowing you know nothing.A journey of a thousand miles begins with a single step.Conquering others takes force, conquering yourself is true strength.Kindness in words creates confidence. Kindness in thinking creates profoundness. Kindness in giving creates love.Wisdom is the daughter of experience.A leader is best when people barely know he exists, when his work is done, his aim fulfilled, they will say, we did it ourselves.Knowing yourself is the beginning of all wisdom.The best fighter is never angry.When I let go of what I am, I become what I might be.