Aklın bütün meseleleri kavramada müstakil ve bütün müşkillleri halledecek durumda olmadığını anladım. - Al-Ghazali

You only truly possess that which you cannot lose in a shipwreck.

"Another dangerous property of worldly things is that they at first appear as mere trifles, but each of these so-called "trifles" branches out into countless ramifications until they swallow up the whole of a man's time and energy. Jesus (on whom be peace!) said, "The lover of the world is like a man drinking sea-water; the more he drinks, the more thirsty he gets, till at last he perishes with thirst unquenched.

"Oh mein Sohn, es wird auch berichtet, dass Luqman (der Weise) seinem Sohn riet: "Oh Sohn, du möchtest doch nicht, dass der Hahn gescheiter ist als du. Er kräht zur Morgendämmerung und du schläfst weiter.