Stephen Covey quote: We develop our character muscles by overcoming challenges and obstacles.

Desarrollamos los músculos de nuestro carácter superando retos y obstáculos.

Stephen Covey

Favoritos

Stephen R. Covey, A. Roger Merrill, Rebecca R. Merrill (1997). “First Things First Every Day: Daily Reflections- Because Where You're Headed Is More Important Than How Fast You Get There”, p.115, Simon and Schuster

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