One hundred sparrow does not make one eagle.

The roads to the stars are open only to those who grasp the great thoughts!

Nobody is born as a teacher and only a few die as a teacher!

If you have discovered a truth, tell it first to a parrot! Every new truth needs an insistent repetition!

The reason while we are in danger in this universe is this: We need the universe but the universe does not need us!

In the name of respecting the reality, keep the flatterers out of your life!

The 'stream' we call science always flows forward; sometimes reactionary beavers block its flow, but the stream is never defeated by this; it accumulates, gathers strength; its waters get over the barrage and continue on their course. The advancement of science is the advancement of God, for science is nothing but human intelligence, and human intelligence is the most valuable treasure God has bequeathed us.