Here are some favorite quotes I came across and want to share:
"It is in vain that we say what we see; what we see never resides in what we say."
"Everything is constantly changing, and reality is a becoming, not a being."

"There is a material world and a mental one, limited, inert. The mental world is less limited (although more limited than God), active, and constituting of the material world. This does not mean that the mental world actually creates the material world. Constitution does not imply creation. It is not as though there were only mental substance and then, by some miracle, physical substance was created from it. What is created is not the material world but the world. The what it is of the material world, its character, is constituted by the mental world, woven from the materials, world's inert threads into a meaningful complex. It is only a mind that can make a world. Without it there is simply silence."