Dale Carnegie

Our fatigue is often caused by

“Our fatigue is often caused not by work, but by worry.”

Dale Carnegie (1888-1955), American writer and the developer of self-improvement courses

The difference between appreciation and flattery

“The difference between appreciation and flattery? That is simple. One is sincere and the other insincere. One comes from the heart out; the other from the teeth out. One is unselfish; the other selfish. One is universally admired; the other universally condemned.”

Dale Carnegie (1888-1955), American writer and the developer of self-improvement courses
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