完美数如同完美的人一样，非常罕见。
我不能没有书。
The true measure of our success in fisheries management will be what we leave behind for our children.
宁要知识不要财富，因为一个是短暂的，另一个是永恒的。
The division of labour， so far as it can be introduced， occasions， in every art， a proportionable increase of the productive powers of labour.
The biggest risk to our industry is not the energy transition itself, but being unprepared for it.