Very often the man with the moral courage to speak in the open against labor when it is wrong is the only man anxious to do effective work for labor when labor is right.
 Theodore Roosevelt, Theodore Roosevelt; an Autobiography (1913). copy citation

Context

“As a matter of fact, we found that it needed much more courage to stand up openly against labor men when they were wrong than against capitalists when they were wrong. The sins against labor are usually committed, and the improper services to capitalists are usually rendered, behind closed doors. Very often the man with the moral courage to speak in the open against labor when it is wrong is the only man anxious to do effective work for labor when labor is right. The only kinds of courage and honesty which are permanently useful to good institutions anywhere are those shown by men who decide all cases with impartial justice on grounds of conduct and not on grounds of class.” source