“In the last Century more amazing things were found out than in any Century before. In this Century hundreds of things still more astounding will be brought to light. At first people refuse to believe that a strange new thing can be done, then they begin to hope it can't be done, then they see it can be done - then it is done and all the world wonders why it was not done centuries ago. One of the new things people began to find out in the last Century was that thoughts - just mere thoughts - are as powerful as electric batteries - as good for one as sunlight is, or as bad for one as poison. To let a sad thought or a bad one get into your mind is as dangerous as letting a scarlet fever germ get into your body. If you let it stay there after it gets in you may never get over it as long as you live.”

“One of the new things people began to find out in the last century was that thoughts- just mere thoughts- are as powerful as electric batteries- as good for one as sunlight is, or as bad for one as poison. To let a sad thought or a bad one get into your mind is as dangerous as letting a scarlet fever germ get into your body. If you let it stay there after it has got you in you may never get over it as long as you live.”

“At first people refuse to believe that a strange new thing can be done, then they begin to hope it can be done, then they see it can be done--then it is done and all the world wonders why it was not done centuries ago.”

“To let a sad thought or a bad one get into your mind is as dangerous as letting a scarlet fever germ get into your body. If you let it stay there after it has got in, you may never get over it as long as you live.”

“Much more surprising things can happen to anyone who, when a disagreeable or discouraged thought comes into his mind, just has the sense to remember in time and push it out by putting in an agreeable, determinedly courageous one. Two things cannot be in one place.”

“The worst thing about being a great power is when you're not one any more. It takes centuries to get over it.”

“To me, war is like the new boss who expects the impossible. He stands over your shoulder repeating one thing, incessantly: “Get it done, get it done.” So you work harder. You get the job done. The boss, however, does not thank you. He asks for more.”