Knowledge is realizing that the street is one way; wisdom is looking in both directions anyway.

[Misquotation; not by Einstein.] If only I had known, I should have become a watchmaker. [Apparently remorseful for his role in the development of the atom bomb.]

From the standpoint of daily life, however, there is one thing we do know: that we are here for the sake of each other.

Time is what the clock says.

It is an outcome of faith that nature-as she is perceptible to our five senses-takes the character of such a well formulated puzzle.

What I seek to accomplish is simply to serve with my feeble capacity truth and justice, at the risk of pleasing no one.

The truth of a theory can never be proven, for one never knows if future experience will contradict its conclusions.