"Memory cannot exist without endurance of the things perceived, and the thing perceived cannot remain where it has never been." - William Harvey

"When health is absent, wisdom cannot reveal itself, art cannot become manifest, strength cannot be exerted, wealth is useless, and reason is powerless." - Herophilos

"Life isn't worth living, unless it is lived for someone else." - Albert Einstein

"Declare your jihad on thirteen enemies you cannot see - Egoism, Arrogance, Conceit, Selfishness, Greed, Lust, Intolerance, Anger, Lying, Cheating, Gossiping and Slandering. If you can master and destroy them, then will be ready to fight the enemy you can see." - Al-Ghazali