Time is painted with a lock before, and bald behind, signifying thereby that we must take time by the forelock; for, when it is once past, there is no recalling it. – Jonathan Swift
Use your health, even to the point of wearing it out. That is what it is for. Spend all you have before you die; do not outlive yourself. – George Bernard Shaw
Unless you have prepared yourself to profit by your chance, the opportunity will only make you ridiculous. A great occasion is valuable to you just in proportion as you have educated yourself to make use of it. – Orison Swett Marden