Some motivation needed here

Some quotes to bounce myself back on track and to gain the momentum and encouragement I need:

• "One day in retrospect the years of struggle will strike you as the most beautiful" -Sigmund Freud
  

• "Great hopes make great men" -- Thomas Fuller (1608-1661) English Historian

• "Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence." -- Helen Keller (1880-1968) American Writer

• "Right actions for the future are the best apologies for wrong ones in the past."-- Tyron Edwards

• "Man has never made any material as resilient as the human spirit."-- Bernard Williams (1929-) English Philosopher

• "The three great essentials to achieving anything worthwhile are:first, hard work, second, stick-to-it-iveness, and third, common sense."-- Thomas A. Edison (1847-1931) American Inventor

• "He who has health has hope; and he who has hope, has everything."-- Arabian Proverb

• "It is a glorious achievement to master one's own temper."-- Anonymous

• "When we accept tough jobs as a challenge to our ability and wade into them with joy and enthusiasm, miracles can happen."-- Arland Gilbert

• "The person who removes a mountain begins by carrying away small stones."-- Chinese proverb

• "The mediocre teacher tells. The good teacher explains. The superior teacher demonstrates. The great teacher inspires."-- William Arthur Ward

• "We need a renaissance of wonder. We need to renew, in our hearts and in our souls, the deathless dream, the eternal poetry, the perennial sense that life is miracle and magic. " -- E. Merrill Root (1895-1973) American Writer

• "Don’t limit yourself. Many people limit themselves to what they think they can do. You can go as far as your mind lets you. What you believe, remember, you can achieve."--Mary Kay Ash

• "He who has persevered (through hard works, determinations and efforts), wins" (man jadda wajada) -- Arabic proverb
  

Those quotes are just those few I found in my email inbox and Google. Care to share some of your favourite quotes here too?