"My travels led me to where I am today. Sometimes these steps have felt painful, difficult, but led me to greater happiness and opportunites"

"The best preparation for good work tomorrow is to do good work today"

"Happiness is not a state to arrive at, but a manner of traveling"

"The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom"

"Happiness is not a reward - it is a consequence. Suffering is not a punishment - it is a result"

"Knowledge of what is possible is the beginning of happiness"

"In thinking about nanotechnology today, what's most important is understanding where it leads, what nanotechnology will look like after we reach the assembler breakthrough"

"Happiness depends more on the inward disposition of mind than on outward circumstances"

"Action may not always bring happiness; but there is no happiness without action"

"Happiness is where we find it, but rarely where we seek it"

"The rays of happiness, like those of light, are colorless when unbroken"