Cf: Adversity has no friends (Br.). Feast and your halls are crowded (Am.). In time of prosperity, friends will be plenty; in time of adversity, not one amongst twenty (Br.). In time of prosperity, friends will be plenty; in time of adversity not one in twenty (Am.). Laugh and the world laughs with you; cry and you cry alone (Am.). Laugh and the world laughs with you; weep and you weep alone (Am., Br.). Smile and the world smiles with you /; weep and you weep alone/ (Am.). When good cheer is lacking, our friends will be packing (Br.). When we laugh, everyone sees; when we cry, no one sees (Am.). When we sing everybody hears us, when we sigh nobody hears us (Br.)
Русско-английский словарь пословиц и поговорок. Академик.ру. 2013.