Each individual is a cosmos of organs, each organ is a cosmos of cells, each cell is a cosmos of infinitely small ones; and in this complex world, the well-being of the whole depends entirely on the sum of well-being enjoyed by each of the least microscopic particles of organized matter. A whole revolution is thus produced in the philosophy of life.

...do not the bewitching power of all studies lie in that they continually open up to us new, unsuspected horizons, not yet understood, which entice us to proceed further and further in the penetration of what appears at first sight only in vague outline?

War is the usual condition of Europe. A thirty years' supply of causes of war is always on hand.

When we have but the will to do it, that very moment will Justice be done: that very instant the tyrants of the Earth shall bite the dust.

Think about the world you want to live and work in. What do you need to know to build the world? Demand that your teachers teach you that.

True progress lies in the direction of decentralization, both territorial and functional, in the development of the spirit of local and personal initiative, and of free federation from the simple to the compound, in lieu of the present hierarchy from the centre to the periphery.

The law is an adroit mixture of customs that are beneficial to society, and could be followed even if no law existed, and others that are of advantage to a ruling minority, but harmful to the masses of men, and can be enforced on them only by terror.