The perenial (quasi-fractal) hermetic dictum "as above, so below" has been formulated by numerous great minds:

Heraclitus
The path up and down are one and the same.

Aristotle
Knowing all things must belong to him who has in the highest degree universal knowledge; for he knows in a sense all the instances that fall under the universal.

Herman Hesse
The things we can see are the same things that exist within us. There is no reality except the one contained inside. This is why many people live in delusion. They take images outside as sole reality, never realizing that they are linked to internal causes.

William Blake
To see a world in a grain of sand,
And a heaven in a wild flower,
Hold infinity in the palm of your hand,
And eternity in an hour.

Newton
Tis true without lying, certain and most true. That which is below is like that which is above and that which is above is like that which is below to do the miracles of one only thing. And as all things have been and arose from one by the meditation of one: so all things have their birth from this one thing by adaptation.

Katha Upanishad
“Those who see all creatures in themselves
And themselves in all creatures know no fear.
Those who see all creatures in themselves
And themselves in all creatures know no grief.
How can the multiplicity of life
Delude the one who sees its