Bill Gates

"The poorest countries are still very different from the richest countries."

"Vaccines are one of the great inventions of mankind."

"Agriculture is crucial to global development."

"We can do remarkable things with the right partnerships."

"Learning is a lifelong process."

"The power of innovation can change the world."

"We need to invest in science and research."

"Failure is a necessary part of success."

"The Internet is the most important innovation of our time."

"We must work together to solve global challenges."

"Innovation requires both optimism and realism."

"The goal should be to improve the lives of as many people as possible."

"We have incredible opportunities ahead of us."

"The impact of your life is measured by the difference you make."

"Creativity is the engine of progress."

"We can dramatically improve health outcomes."

"The power of markets can help the poor."

"We need better tools and better strategies for global health."

"Risk-taking is essential to innovation."

"The future is not predetermined; we can shape it."

"We can be optimistic about the future if we act today."

"Infectious diseases are a huge threat to development."

"We must maintain our optimism about human progress."

"The private sector can be a force for good."

"Knowledge is power, but only if it's used wisely."

"Leadership is about making a difference."

"We can create a better world through innovation and philanthropy."

"The future belongs to those who believe in the beauty of their dreams."

"Be bold, be brave, and never stop learning."

"Your life matters more than you know."