"Science is built up of facts, as a house is with stones. But a collection of facts is no more a science than a heap of stones is a house."

"One would have to have completely forgotten the history of science so as to not remember that the desire to know nature has had the most constant and the happiest influence on the development of mathematics."

"It is through science that we prove, but through intuition that we discover."

"Just as houses are made of stones, so is science made of facts."

"We do not remember the passing of hours, but the resonance of moments. Such is the immutable nature of understanding — an essential principle for the reflective life."

"It's only when we truly know and understand that we have a limited time on earth - and that we have no way of knowing when our time is up, we will then begin to live each day to the fullest, as if it was the only one we had."

"Consider a tree for a moment. As beautiful as trees are to look at, we don't see what goes on underground - as they grow roots. Trees must develop deep roots in order to grow strong and produce their beauty. But we don't see the roots. We just see and enjoy the beauty. In much the same way, what goes on inside of us is like the roots of a tree."

"Food is no longer sacred to us: in becoming too efficient we've changed its nature."