Focus on directions rather than destinations. Who knows their destiny？ But maintain the right direction and you’ll arrive at where you want to go.

Click chemistry is not just a method—it's a philosophy of simplicity and reliability in synthesis.

小人专门期望他人的恩惠，但受恩后就忘；君子则不轻易受人恩惠，若受恩于人，则必定想法图报。