Surya

“entirely. When a merchant finds that a certain line of merchandise is not selling, he usually supplants it with another that is in demand. The person whose business is that of marketing personal services must also be an efficient merchant. If his services do not bring adequate returns in one occupation, he must change to another, where broader opportunities are available.”
― Napoleon Hill, Think and Grow Rich

“An investment operation is one which, upon thorough analysis promises safety of principal and an adequate return. Operations not meeting these requirements are speculative.”
― Benjamin Graham, The Intelligent Investor

“The intelligent investor realizes that stocks become more risky, not less, as their prices rise—and less risky, not more, as their prices fall. The intelligent investor dreads a bull market, since it makes stocks more costly to buy. And conversely (so long as you keep enough cash on hand to meet your spending needs), you should welcome a bear market, since it puts stocks back on sale.”
― Benjamin Graham, The Intelligent Investor

“Successful men, in all callings, never stop acquiring specialized knowledge related to their major purpose, business, or profession. Those who are not successful usually make the mistake of believing that the knowledge acquiring period ends when one finishes school.  The truth is that schooling does but little more than to put one in the way of learning how to acquire practical knowledge.”
― Napoleon Hill, Think and Grow Rich