(E)ven if we find a unified theory, we may be able to make only statistical predictions.

This renormalization procedure has never been put on a very firm conceptual or mathematical basis.

[T]he Anthropic Principle … can be paraphrased as ‘Things are as they are because we are.

There ought to be something very distinctive about the theory that describes the Universe.

The universe is not expanding in space, but consists of expanding space.

It … now takes enormous machines and a great deal of money to perform an experiment whose results we cannot predict.

Astronomical measurements are, without exception, measurements of phenomena occurring in a terrestrial observatory or station; it is only by theory that they are translated into knowledge of a universe outside.

… there is no doubt that his words express what is in our minds when we refer to determinism.

A hundred thousand million Stars make one Galaxy;
A hundred thousand million Galaxies make one Universe.