dreamt in campus with my Nankai Univ alumni again in practice lesson. I lost track when team launched. on half way I met some kids, I rewarded some coins to a smart boy. when I caught up with the team, they were leaving. I confused why these physics lessons so hard to learn and discussed my problem with others, like ballistic track, pounding force, etc. some of my alumni told me and I gradually grasped it, for human have right to know what's going on in their life. so science sometimes knows as curious as fun, doesn't always mean to change courses, to fix something, but it tells truth even boring truth. I met lots of classmates including girls when I arrived the camp. on farewell party I suggested a toast and lots of biddings echo from my classmates then I woke up. a rain in dawn turns clear even in my dream. its a mid size rain, raindrops make happy rhythm like my hometown central China summer rains. last night I first intended to suffer starvation with the only noodle meal, for my only have 30rmb in purse. near 9pm, hunger let me blue, I tried to shift focus from it but failed. then I gave in and intended to watch and dine out my son today, for according PRC calendar the Sunday will be a workday. I will have to shower on Saturday rather than usual Sunday lest my son has no vacation to do it for schooling. then I relieved and ate a candy I prepared for my son's visit. later hunger even urgent and I had to cost ￥5 for a street vendor snack nearby in the night. God, dad, when is we in no want? when our enjoyed lifestyle makes us heartedly settled? bring me sooner my Royal China to host my guests and under Holy glory of plenty we cheer up. grant me my cyber startup booming and credit as safe and likes a breeze.