“ALL religions have preserved the remembrance of a primitive book, written in hieroglyphs by the sages of the earliest epoch of the world. [...] The tradition in question rests altogether on the one dogma of Magic: the visible is for us the proportional measure of the invisible.”

A Short History of Chemistry (1937)
Context: In Alexandria two streams of knowledge met and fused together... The ancient Egyptian industrial arts of metallurgy, dyeing and glass-making... and... the philosophical speculations of ancient Greece, now tinged with ancient mysticism, and partly transformed into that curious fruit of the tree of knowledge which we call Gnosticism.... the result was the "divine" or "sacred" art (... also means sulphur) of making gold of silver.... during the first four centuries a considerable body of knowledge came into existence. The treatises written in Greek... in Alexandria, are the earliest known books on chemistry.... The treatises also contain much of an allegorical nature... sometimes described as "obscure mysticism."... the Neoplatonism which was especially studied in Alexandria... is not so negligible as has sometimes been supposed.... The study of astrology was connected with that of chemistry in the form of an association of the metals with the planets on a supposed basis of "sympathy". This goes back to early Chaldean sources but was developed by the Neoplatonists.

Theatrum Chemicum Volume 1 Spec. phil.

Founding Address (1876), Life and Destiny (1913)
Context: To those who are longing for a higher life, who deeply feel the need of religious satisfactions, we suggest that there is a way in which the demands of the head and the heart may be reconciled. Religion is not necessarily allied with dogma, a new kind of faith is possible, based not upon legend and tradition, not upon the authority of any book, but upon the moral nature of man.

1840s, Heroes and Hero-Worship (1840), The Hero as Man of Letters

The She-Ancient, in Pt. V
Source: 1920s, Back to Methuselah (1921)
Context: Art is the magic mirror you make to reflect your invisible dreams in visible pictures. You use a glass mirror to see your face: you use works of art to see your soul. But we who are older use neither glass mirrors nor works of art. We have a direct sense of life. When you gain that you will put aside your mirrors and statues, your toys and your dolls.

"Einstein's Reply to Criticisms" (1949), The World As I See It (1949)
Context: What is the meaning of human life, or of organic life altogether? To answer this question at all implies a religion. Is there any sense then, you ask, in putting it? I answer, the man who regards his own life and that of his fellow creatures as meaningless is not merely unfortunate but almost disqualified for life.

Section 4, member 2, subsection 3, Causes of Despair, the Devil, Melancholy, Meditation, Distrust, Weakness of Faith, Rigid Ministers, Misunderstanding Scriptures, Guilty Consciences, etc.
The Anatomy of Melancholy (1621), Part III