“Strive not to be a success, but rather to be of value.”
“Life is like riding a bicycle. To keep your balance, you must keep moving.”
“Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.”
“The important thing is not to stop questioning. Curiosity has its own reason for existing.”
“Anyone who stops learning is old, whether at twenty or eighty.”
“You never fail until you stop trying.”
“We cannot solve our problems with the same thinking we used when we created them.”