السعادة لاتعتمد على عوامل خارجية ، بل تحكمها حالتنا الذهنية . Author: Dale Carnegie Copy Quote More from Dale Carnegie “Students of public speaking continually ask, "How can I overcomeself-consciousn…” “Are you bored with life? Then throw yourself into some work you believe in with…” “When two partners always agree, one of them is not necessary." If there is some…” “When we are harassed and reach the limit of our own strength, many of us then t…”