Quote by Irving Fisher

"The best time to plant a tree was 20 years ago. The second best time is now."

"Capital is not money. Capital is the means of production, built by saved money."

"Advertising is the most potent influence on human conduct after law and government."

"The four most important words in investing are 'This time it's different.'"

"Science helps us understand the world."

"I've witnessed the birth of science, and it continues to amaze me."

"I'm something of a scientist myself."

"The fusion process is self-sustaining now!"