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　　From the earliest times men seem to have noticed the habits of insects, and to have learnt lessons from them. Ants and bees work very hard during the summer, 1 enough food to last during the winter. They give us a good example to 2 . If we waste time when the conditions are good for work, we shall probably 3 later; when we really want to work, we are 4 to do so.

　　Moths, and some other insects, cannot help flying 5 a light of any kind. The attraction seems to be too strong for them. As a result, they often 6 themselves by flying into something that is burning, such as a lighted candle. In some countries, when such insects as flying ants become a nuisance, people 7 themselves by lighting fires at the doors of their cottages. Sometimes the insects fly into the fire in such large 8 that they put it out. In literature we often find poets warning us of the danger of being attacked by 9 or beautiful things that will destroy us.

　　Butterflies are admired for their 10 , though they receive very little praise for anything else. They fly 11 in the sunshine, going from flower to flower, happy all day long, leading a life of 12 . They are beautiful, but it seems that they are not of much 13 use to anybody. Some human beings lead very much the same sort of life 14 they are butterflies of society.

　　Locusts are 15 . They are active enough, too active. They spend their time eating the food of others. 16 there are men like this, destroying things wherever they go, taking for themselves 17 belongs to others, using up everything and 18 nothing. They are human 19 .

　　Perhaps it may be said that even the worst insects have one use: they 20 us not be like them.

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