31. And it won't work too well if you're looking for information on abstract ideas . 32. A parable is like a metaphor in that it uses concrete, perceptible phenomena to illustrate abstract ideas . 33. The book relied on abstract ideas , rather than tired cliches that were ussually associated with ABC books. 34. The book relied on abstract ideas , rather than the clich�s that were usually associated with ABC books. 35. The best way to deal with abstract ideas of such enormousness is to visualize them in a concrete way. 36. When you began on abstract ideas , you could see her eyes clouding over, her eyelids became heavy, 37. In all cases'the particular object [ e . g . proportion ] is an abstract idea . 38. "Alice " specifically holds that a generic computer implementation of an abstract idea is patent ineligible. 39. Mixtec has few nouns for abstract ideas ; when they do not exist, it uses verbal constructions instead. 40. While the Symphony in C is based on abstract ideas , his later symphony makes use of pressing social concerns.