没能上大学焉知非福, 我想你在大学里是不会觉得快乐的. count one's blessings=> count1. Not getting into university may be a blessing in disguise; I don't think you'd have been happy there.
不入虎穴焉得虎子 How can one obtain tiger-cubs without entering the tiger's lair.
塞翁失馬焉知非福 Misfortune might be a blessing in disguise.
不入虎穴，焉得虎子 Nothing venture, nothing have.
不入虎穴，焉得虎子 How can you catch tiger cubs without entering the tiger's lairs.