"What used to be called "natural law" is nothing but a certain relation among phenomena which we dimly see, and each "law" takes a temporary character of causality; that is to say: If such a phenomenon is produced under such conditions, such another phenomenon will follow. No law placed outside the phenomena: each phenomenon governs that which follows it-not law.
Nothing preconceived in what we call harmony in Nature. The chance of collisions and encounters has sufficed to establish it. Such a phenomenon will last for centuries because the adaptation, the equilibrium it represents has taken centuries to be established; while such another will last but an instant if that form of momentary equilibrium was born in an instant. If the planets of our solar system do not collide with one another and do not destroy one another every day, if they last millions of years, it is because they represent an equilibrium that has taken millions of centuries to establish as a resultant of millions of blind forces. If continents are not continually destroyed by volcanic shocks, it is because they have taken thousands and thousands of centuries to build up, molecule by molecule, and to take their present shape. But lightning will only last an instant; because it represents a momentary rupture of the equilibrium, a sudden redistribution of force.
Harmony thus appears as a temporary adjustment, established among all forces acting upon a given spot-a provisory adaptation; and that adjustment will only last under one condition: that of being continually modified; of representing every moment the resultant of all conflicting actions. Let but one of those forces be hampered in its action for some time and harmony disappears. Force will accumulate its effect; it must come to light, it must exercise its action, and if other forces hinder its manifestation it will not be annihilated by that, but will end by upsetting the present adjustment, by destroying harmony, in order to find a new form of equilibrium and to work to form a new adaptation."
"ANARCHISM: IT'S PHILOSOPHY AND IDEAL" (San Francisco: Free Society, 1898) by Peter Kropotkin
"I learned this, at least, by my experiment: that if one advances confidently in the direction of his dreams, and endeavors to live the life which he has imagined, he will meet with a success unexpected in common hours. He will put some things behind, will pass an invisible boundary; new, universal, and more liberal laws will begin to establish themselves around and within him; or the old laws be expanded, and interpreted in his favor in a more liberal sense, and he will live with the license of a higher order of beings. In proportion as he simplifies his life, the laws of the universe will appear less complex, and solitude will not be solitude, nor poverty poverty, nor weakness weakness. If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them."
WALDEN by Henry David Thoreau (1854)