Anyone who refuses to marry is shrinking his farmwork, wasting the seed, and leaving idle the appropiate tools created by God; he sins against the purpose of creation and wisdom visible in the evidence of natural structure. The man who refuses to marry has severed a chain of being, a previously unbroken chain linking his own existence to that of Adam.
Al-GhazaliWhoever passes forty without his virtue overpowering his vice, let him get ready for hellfire. This advice contains enough for people of knowledge.
Al-GhazaliKnow, O beloved, that man was not created in jest or at random, but marvelously made and for some great end. Although he is not form everlasting, yet he lives for ever; and though his body is mean and earthly, yet his spirit is lofty and divine
Al-GhazaliNo one who possesses snow would find any hardship in exchanging it for jewels and pearls. This world is like snow exposed to sun, which continues to melt until it disappears altogether, while the next life is like a precious stone that never passes away.
Al-Ghazali