"It is only when you touch the higher that you realize how low we may be among the possibilities of creation."

"We are all connected, in ways we do not understand."

"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts."

"Healthy scepticism is the basis of all accurate observation."

"Life is a great chain, and we are all links in it."