“We are interested in others when they are interested in us.”

— Publilius Syrus
 

 
“It is the individual who is not interested in his fellow men who has the greatest diffuculties in life and provides the greatest injury to others. It is from among such individuals that all human failures spring.”

— Alfred Adler
 

 
“If you teach a man anything, he will never learn.”

— Bernard Shaw
 

 
“I once spent almost two years writing a book on public speaking; and yet I find I have to keep going back over it from time to time in order to remember what I wrote in my own book. The rapidity with which we forget is astonishing.”

— Dale Carnegie
 

 
“The man who can put himself in the place of other men, who can understand the workings of their minds, need never worry about what the future has in store for him.”

— Owen D. Young