1. He that will thrive must rise at five. 

2. A full cup must be carried steadily. 

3. The tree must be bent while it is young. 

3. Sentencedict.com is a online sentence dictionary, on which you can find good sentences for a large number of words.

4. Desperate diseases must have desperate cures. 

5. You must lose a fly to catch a trout. 

6. If you want knwledge, you must toil for it. 

7. As the wind blows, you must set your sail. 

8. One must drink as one brews. 

9. What goes up must come down. Isaac Newton 

10. Little boats must keep the shores. 

11. He that is master must serve. 

12. Devil must be driven out with devils. 

13. You must not pledge your own health. 

14. He must needs go whom the devil drives. 

15. We must not lie, and cry, God help us. 

16. You must reap what you have sown. 

17. Justice must be done even if the sky falls. 

18. The best of friends must part. 

19. If you want knowledge, you must toil for it. 

20. He that fears every bush must never go a-birding. 

21. The finest diamond must be cut. 

22. They that live longest must die at last. 

23. Counsel must be followed, not praised. 

24. Scanderbeg’s sword must have Scanderbeg’s arm. 

25. He that would command must serve. 

26. If you dance you must pay the fiddler. 

27. One must howl with the wolves. 

28. A boisterous horse must have a rough bridle. 

29. Into every life a little rain must fall. 

30. Friends [The best of friends] must part.