"Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do."

"Happiness is an attitude. We either make ourselves miserable, or happy and strong. The amount of work is the same."

"The problem with the rat race is that even if you win, you’re still a rat."

"Opportunity is missed by most people because it is dressed in overalls and looks like work."

"Someone once told me that 'time' is a predator that stalks us all our lives. But I rather believe that time is a companion who goes with us on the journey and reminds us to cherish every moment because it will never come again."

"A man should never neglect his family for business."

"You have brains in your head. You have feet in your shoes. You can steer yourself, any direction you choose."

"A man is but the product of his thoughts. What he thinks, he becomes."

"The Pessimist complains about the wind. The optimist expects it to change. The leader adjusts the sails."

"Happiness is not something you postpone for the future; it is something you design for the present."

"It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change."

"There are two primary choices in life: to accept conditions as they exist, or accept the responsibility for changing them."

"When one door of happiness closes, another opens, but often we look so long at the closed door that we do not see the one that has been opened for us."

"Don’t say you don’t have enough time. You have exactly the same number of hours per day that were given to Helen Keller, Pasteur, Michelangelo, Mother Teresa, Leonardo da Vinci, Thomas Jefferson, and Albert Einstein."

"Instead of wondering when your next vacation is, you ought to set up a life you don’t need to escape from."

Re-energize your day or week with these inspiring quotes from some of the world's greatest thinkers.

CARLOS CASTANEDA

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