151. Beauty gains little, and homeliness and deformity lose much, by gaudy attire. 

152. We know nothing of what will happen in future, but by the analogy of past experience. 

153. There are only two powers in the world, the sword and the pen; and in the end the former is always conquered by the latter. 

154. When a true genius appears in the world you may know him by his sign, that the dunces are all in confederacy against him. 

155. He hurt his head by running against a wall.

156. It eats in her to stand idly by.

157. He is junior to me by a year.

158. The coastline can now be monitored by radar.

159. Never judge something by its looks.

160. The desk lamp was turned over by someone.

161. His figure is dwarfed by the huge red McDonald'ssign.

162. Fleming discovered penicillin by accident in 1928.

163. They sell screws and nails by volume.

164. Little by little, he formulated his plan for escape.

165. They are transfigured by the healing powers of art.

166. The company had undervalued the building by £20 000.

167. Our troops was beset by enemy fire.

168. The road was blocked by fallen logs.

169. They were enticed westward by dreams of gold.

170. Lets have a picnic down by the river.

171. This yogurt is past its sell - by date.

172. The silence was broken by a loud cry.

173. U.S. business today is challenged by aggressive overseas competitors.

174. He defeated the incumbent governor by a large plurality.

175. Online bookstores can undercut retailers by up to 30%.

176. The way is blocked by the tall cataract.

177. It's a day's journey by car.

178. Survivors of the crash were rescued by helicopter.

179. A huge arms cache was discovered by police.

180. The cliffs are being constantly eroded by heavy seas.