What is the exact quote from Carl Jung - re - "The symbol is the greatest invention of mankind as a tool for transformation"
It could be this one as well.
"The wise man who is not heeded is counted a fool, and the fool who proclaims the general folly first and loudest passes for a prophet and Führer, and sometimes it is luckily the other way round as well, or else mankind would long since have perished of stupidity. "
If either of those are not what you are looking for, please let me know and I will continue to search for you.
"The conflict between science and religion is in reality a misunderstanding of both. Scientific materialism has merely introduced a new hypostasis, and that is an intellectual sin. It has given another name to the supreme principle of reality and has assumed that this created a new thing and destroyed an old thing. Whether you call the principle of existence “God,” “matter,” “energy,” or anything else you like, you have created nothing; you have merely changed a symbol. The materialist is a metaphysician malgré lui. Faith, on the other hand, tries to retain a primitive mental condition on merely sentimental grounds. It is unwilling to give up the primitive, childlike relationship to mind-created and hypostatized figures; it wants to go on enjoying the security and confidence of a world still presided over by powerful, responsible, and kindly parents."