Erwin Schrodinger — "The only constant in life is change."

"Needless to say, taken literally, this is just as absurd. For an adult organism the energy content is as stationary as the material content. Since, surely, any calorie is worth as much as any other ca…"

"I am no friend of probability theory, I have hated it from the first moment when our dear friend Max Born gave it birth. For it could be seen how easy and simple it made everything, in principle, ever…"

"We are part of the world, and the world is part of us."

"The great difficulty for our contemporary way of thinking is that we must recognize the identity of the experiencing and the experienced subject."

"The present is the only thing that has no end."