为明天做的最好准备就是今天做到最好。
穷人并不懒惰;他们只是被困在一个让他们很难摆脱贫困的系统中。
在化学工业中,安全不是一个部门,而是一种文化。
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.
"We are all the same, but we are all different."