Quote #13616
The individual must not merely wait and criticize, he must defend the cause the...
Quote #30318
When I was young, I was sure of many things now there are only...
Quote #22320
For if that last day does not occasion an entire extinction, but a change...
Quote #20652
Reason is man’s instrument for arriving at the truth, intelligence is man’s instrument for...
Quote #23211
When you reach the end of your rope, tie a knot in it and...
Quote #6829
That which has always been accepted by everyone, everywhere, is almost certain to be...
Quote #9402
The important work of moving the world forward does not wait to be done...
Quote #8107
Science is nothing but perception.
Quote #17995
A whole is that which has beginning, middle and end.
Quote #11767
I can be changed by what happens to me. But I refuse to be...