The Power of Concentration

"The Power of Concentration" is a book of lessons intended to help the reader increase their powers of concentration. Being able to concentrate effectively is a critical element of success, as the author writes, "Success is assured when you are able to concentrate for you are then able to utilize for your good all constructive thoughts and shut out all the destructive ones. It is of the greatest value to be able to think only that which will be beneficial." Это и многое другое вы найдете в книге The Power of Concentration