数学中的每个问题都是一个等待解决的谜题,而乐趣就在于解决的过程。
I have to remind myself that some birds are not meant to be caged. Their feathers are just too bright.
人は、自分が傷つかないために、他人を傷つける。
"The past is a country we can never return to, but whose borders we are always crossing."