Self-improvement Quotes

"Worry is a misuse of your imagination." "What you do on your bad days matters more than what you do on your good days." "It is not the mountain we conquer, but ourselves" "It is not that we have a short time to live, but that we waste a great deal of it" "Difficulties strengthen the mind, as labor does the body" "No man was ever wise by chance" "A gem cannot be polished without friction, nor a man perfected without trials"