| 1 | I have only a sketchy knowledge of geography. | |
| 2 | David has only a smattering of astronomy. | |
| 3 | A language must not be too complex, lest the programmer forget half of it. | |
| 4 | He's always laying down the law about gardening but he really doesn't know much about it. | |
| 5 | He that has never known adversity, is but half acquainted with others or himself. |