1099. I am caught between the devil and the deep blue sea. 进退维谷。
1100. I am not a slave, I am not a captive, and by energy I can overcome the greater obstacles. 我不是奴隶，也不是俘虏，我有力量可以克服更大的艰难险阻。
1101. I am not now that which I have been. （I am not what I used to be.） 今日之我已非昔日之我。
1102. I am not only witty in myself, but the cause that wit is in other men. 我不仅要使自己有才智，而且也要使别人有才智。
1103. I believe the first test of truly great man is his humility. 一个真正伟大的人，对他的第一个考验就是看他是否谦逊。
1104. I cannot be your friend and your flatterer too. 我不能既是你的朋友，而又对你阿谀奉承。
1105. I count myself in nothing else so happy as in a soul remembering my good friends. 我认为，只有在脑海中想起好朋友时我才会那样快乐。
1106. Ideals are like the stars —— we never reach them, but like mariners, we chart our course by them. 理想好像星星，不能摘到，但我们犹如水手，可借它指引航向。
1107. Idle folks have most labour. 懒汉总嫌活太多。
1108. Idle folks lack no excuses. 懒汉辩解，何患无词。
1109. Idleness is the key of beggary, and the root of all evil. 懒惰是行乞的敲门砖，是万恶的根源。
1110. Idleness is the root （or mother） of all evil （or sin or vice）. 懒惰是万恶之源。
1111. Idleness is the rust of the mind. 懒惰使脑子生锈。
1112. Idleness rusts the mind. 懒惰使人的头脑迟钝。
1113. Idle young, needy old. 少壮不努力，老大徒伤悲。
1114. If a donkey bray at you, don't bray at him. 傻瓜惹著你，你别跟他缠。
1115. If a man empties his purse into his head, no man can take it away from him. 如果倒空钱袋，装入脑袋，那就无人能够把钱夺走。
1116. If a man will begin with certainties, he shall end in doubts, but if he will be content to begin with doubts, he shall end in certainties. 如果以肯定开始，必将以怀疑告终；如果愿以怀疑开始，必将以肯定告终。
1117. If at first you don't succeed, try, try again. 初试不成功，努力勿懈怠。
1118. If doctors fail thee, be these three thy doctors; rest, cheerful-ness, and moderate diet. 如果医药不能帮助，那么注意三件事∶休息，愉快，饮食调和。
1119. If each would sweep before his own door, we should have a clean city （or street）. 众擎易举。
1120. I fear the Greeks, even when bringing gifts. 敌人献礼品，千万莫轻信。
1121. If I take care of my character, my reputation will take care of itself. 注意好品行，自有美名声。
1122. If it is not right, do not do it; if it is not true, do not say it. （If it is not broken, do not fix it.） 不正确的事不做，不真实的话不说。
1123. If it were not for hope, the heart would break. 人是靠希望活著的。
1124. If matters not how a man dies, but how he lives. 重要的并不在于一个人怎样死，而是在于他怎样生。
1125. If money be not thy servant, it will be thy master. 不做金钱的主人，就会做金钱的奴隶。
1126. If nobody loves you, be sure it is your own fault. 如果没有人爱你，肯定是你自己有问题。
1127. If one desires to succeed in anything, he must pay the price. 如果想做成点事，就得付出代价一干。
1128. If the beard were all, the goat might preach. 如果有了胡须就什么都行，那么山羊也可以说教了。
1129. If the blind lead the blind, both shall fall into the ditch. 问道于盲，无益于事。
1130. If the counsel be good no matter who gave it. 只要忠告中肯，谁提都行。
1131. If the eye do no admire, the heart will not desire. 眼不馋，心不贪。
1132. If the old dog barks, he gives counsel. 如果老狗叫，他是给忠告。
1133. If the pills were pleasant, they would not be gilded. 丸药不苦不会加糖衣。
1134. If there be neither snow nor rain, then will be dear all sorts of grain. 雨雪不调，五谷价高。
1135. If there were no clouds, we should not enjoy the sun. 吃得苦中苦，方知甜中甜。
1136. If the sky fall （or falls）, we shall catch larks. 异想天开
1137. If they say you are good, ask yourself if it be true. 若有人称赞你，要自问对不对。
1138. If things were to be done twice all would be wise. 事事倘能做两次，人人都可称明智。
1139. If two men ride on a horse, one must ride behind. 两人同骑一马，必有一人在后。
1140. If we are bound to forgive an enemy we are not bound to trust him. 如果我们决定宽恕一个敌人，但决不能相信他。
1141. If we cannot get what we like, we have to like what we can get. 随遇而安。
1142. If wise men play the fool, they do it with a vengeance. 智者干傻事，愚蠢到极点。
1143. If wishes were horses, beggars might ride. 愿望不等于事实。
1144. If you agree to carry the calf, they'll make you carry the cow. 得寸进尺。
