“...the question as to the nature of force will not have been answered; but our minds, no longer vexed, will cease to ask illegitimate questions.”

“Outside our consciousness there lies the cold and alien world of actual things. Between the two stretches the narrow borderland of the senses. No communication between the two worlds is possible excepting across the narrow strip. For a proper understanding of ourselves and of the world, it is of the highest importance that this borderland should be thoroughly explored.”Heinrich Hertz’ Keynote Address at the Imperial Palace, Berlin, August, 1891”

“With the compelling convincingness of dreams, which are vague yet exact, the ghost voice draws us (to ourselves and all of our component selves), lifts them casually out of the well of the past--the well wherein nothing is lost, the deep well of forgetfulness, and remembrance--and tosses them mockingly on the glassy table surface of our consciousness. There we are forced to consider them. There we are forced to regard, analyze, and re-understand.”

“We are social animals. We like to feel a part of something of beauty and power that transcends our insignificance. It can be a religion, a political party, a ball club. Why not also Nature? I feel a strong identity with the world of living things. I was born into it; we all were. But we may not feel the ties unless we gain intimacy by seeing, feeling, smelling, touching and studying the natural world. Trying to live in harmony with the dictates of nature is probably as inspirational as living in harmony with the Koran or the Bible. Perhaps it is also a timely undertaking.”

“I am no longer a divine biped. I am no longer the freest German after Goethe, as Ruge named me in healthier days. I am no longer the great hero No. 2, who was compared with the grape-crowned Dionysius, whilst my colleague No. 1 enjoyed the title of a Grand Ducal Weimarian Jupiter. I am no longer a joyous, somewhat corpulent Hellenist, laughing cheerfully down upon the melancholy Nazarenes. I am now a poor fatally-ill Jew, an emaciated picture of woe, an unhappy man.”

“The Romans would never have found time to conquer the world if they had been obliged first to learn Latin.”

“Nature knows no indecencies; man invents them.”