A tree is known by its fruit. 觀其行而知其人。
A word spoken cannot be recalled. 一言說出，難以收回。
A word to the wise is enough. 聰明人不用細說。
A work ill done must be twice done. 工作未干好，只得重返工。
Act fairly by all men. 一視同仁。
Actions speak louder than words. 事實勝于雄辯。
Adversity makes a man wise, not rich. 困難和不幸不能使人富有，卻能使人聰明。
After rain comes fair weather. 否極泰來。
After supper walk a mile. 飯后百步走，活到九十九。
All are not friends that speak us fair. 說好話的不一定都是朋友。
All beginnings are hard. 萬事開頭難。
All men can't be first. 并非所有的都能獲第一。
All roads lead to Rome. 處處有路通長安。
All things are difficult before they are easy. 萬事開頭難。
All work and no play makes Jack a dull boy. 只工作而無娛樂會使人愚鈍。
An apple a day keeps the doctor away. 一天一個蘋果，醫(yī)生不來找我。
An empty bag cannot stand upright. 空袋子放不真。
An evil lesson is soon learned. 學壞容易。
An honest man's word is as good as his bond. 君子一言，駟馬難追。
An hour in the morning is worth two in the evening. 一日之計在于晨。
An idle youth, a needy age. 少壯不努力，老大徒傷悲。
An ill workman quarrels with his tools. 不會撐船怪河彎。