You and I are standing this very second at the meeting place of two eternities: the vast past that has endured forever, and the future that is plunging on to the last syllable of recorded time. We can't possible live in either of those eternities - no, not even for a split second. But, by trying to do so, we can wreck both our bodies and our minds. So let's be content to live the only time we can possible live: from now until bedtime.
Dale CarnegieThe most important thing in life is not simply to capitalize on your gains. Any fool can do that. The important thing is to profit from your losses. That requires intelligence, and makes the difference between a man of sense and a fool.
Dale CarnegieBe a balanced optimist. Nobody is suggesting that you become an oblivious Pollyanna, pretending that nothing bad can or ever will happen. Doing so can lead to poor decisions and invites people to take advantage of you. Instead, be a rational optimist who takes the good with the bad, in hopes of the good ultimately outweighing the bad, and with the understanding that being pessimistic about everything accomplishes nothing. Prepare for the worst but hope for the best - the former makes you sensible, and the latter makes you an optimist.
Dale CarnegieRemember, happiness doesn't depend upon who you are or what you have; it depends solely upon what you think. So start each day by thinking of all the things you have to be thankful for. Your future will depend very largely on the thoughts you think today. So think thoughts of hope and confidence and love and success.
Dale Carnegie