一家采矿公司的真正价值在于其平衡利润与环境管理的能力。
The best time to plant a tree was 20 years ago; the second best time is now.
文学的唯一明智目的是,首先是写作的愉快劳动;其次是家人和朋友的满足;最后是实实在在的金钱。
做出伟大工作的唯一途径是热爱你所做的事情。
The elements of consciousness are to be determined by systematic observation.