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choice. But are all people satisfied with their choice? I well 

 remember sitting at dinner with a very wealthy stockbroker once 

 and hearing him say to a distinguished naturalist who was one of 

 the party, " I'd gladly give up all of this wealth to be able to take 

 one trip with you to South America." 



Success is one of the greatest assets of life and he who wins it 

 through an interesting life work is most fortunate. It is not easy 

 to determine what we ought to do with our lives; for what we 

 would like to do may not be the thing we ought to do. There are 

 many people who find their work most uncongenial because they 

 are not physically and mentally fitted for their positions. One of 

 the things for you to do now is to begin to think about your future. 

 Make an analysis of your strong and weak points, your likes 

 and dislikes, your abilities and your handicaps. Then you will 

 be able better to determine whether you are fitted for the vocation 

 which you think you would like to make for your life work. Per- 

 haps some of the possibilities that come from your study of biology 

 may interest you. Think it through carefully and then investigate 

 further if you believe you are fitted for the work you have in mind. 



The one thing which we should have learned from the preceding 

 units is how to take care of ourselves physically. Not only have 

 we learned certain facts about posture in relation to health, but we 

 have found out certain facts about diet, the values of vitamins, 

 the way to have good digestion and to keep it, as well as many 

 other facts which aid in hygienic living. We have also learned 

 some of the reasons for environmental improvement and care. 

 These are, after all, facts related to health conservation and 

 should be so used by us. 



Probably the biggest asset we can have is real knowledge of our 

 own mind and how it works. We can either be slaves or masters of 

 self. It lies with each one of us. For the ability to face life with 

 a smile, to be always cheerful, no matter what the cost, to think 

 straight and clean, to make the most of every opportunity, is 

 something that each of us can acquire. If we do learn this lesson, 

 it will be worth more than all the facts that many books contain. 



Another thing we should aim to do is to cultivate a hobby. 

 Learn to like to do some one thing better than others and make 

 H. bio — 42 



