Here are some encouraging quotes ^{1 2 3}:

• "You cannot change what you are, only what you do."
• "An unexamined life is not worth living."
• "Say something positive, and you'll see something positive."
• "Every strike brings me closer to the next home run."
• "The happiness of your life depends on the quality of your thoughts."
• "Before anything else, preparation is the key to success."
• "Be yourself; everyone else is already taken."
• "When you have a dream, you've got to grab it and never let go."
• "Nothing is impossible."
• "There is nothing impossible to they who will try."
• "The bad news is time flies."
• "Life has got all those twists and turns."
• "Keep your face always toward the sunshine, and shadows will fall behind you."
• "Be courageous."
• "I will love the light for it shows me the way, yet I will endure the darkness for it shows me the stars." - Og Mandino