He who can take no interest in what is small will take false interest in what is great.

He who can take no interest in what is small will take false interest in what is great.

Who speaks reason to his fellow man bestows it upon them.

Who speaks reason to his fellow man bestows it upon them.

The revolutions of thought which shape the basic outlook of an age are not disseminated through text-books- they spread like read more

The revolutions of thought which shape the basic outlook of an age are not disseminated through text-books- they spread like epidemics, through contamination by invisible agents and innocent germ carriers, by the most varied forms of contact, or simply by breathing the common air.

We shall assume that what each man does is based not on direct and certain knowledge, but by pictures made read more

We shall assume that what each man does is based not on direct and certain knowledge, but by pictures made by himself or given to him. If his atlas tells him the world is flat he will not sail near what he believes to be the edge of our planet for fear of falling off. If his maps include a fountain of eternal youth, a Ponce de Leon will go off in quest of it. If someone digs up yellow dirt that looks like gold, he will for a time act exactly as if he has found gold. The way in which the world is imagined determines at any particular moment what men will do. It does not determine what they will achieve. It determines their effort, their feelings, their hopes, not their accomplishments and results.

Every step in human progress, from the first feeble stirrings in the abyss of time, has been opposed by the read more

Every step in human progress, from the first feeble stirrings in the abyss of time, has been opposed by the great majority of men. Every valuable thing that has been added to the store of man's possessions has been derided by them when it was new, and destroyed by them when they had the power. They have fought every new truth ever heard of, and they have killed every truth-seeker who got into their hands.

From the saintly and single-minded idealist to the fanatic is often but a step.

From the saintly and single-minded idealist to the fanatic is often but a step.

It is loneliness that makes the loudest noise. This is true of men as of dogs.

It is loneliness that makes the loudest noise. This is true of men as of dogs.

There are in fact four very different stumbling blocks in the way of grasping the truth, which hinder every man read more

There are in fact four very different stumbling blocks in the way of grasping the truth, which hinder every man however learned, and scarcely allow anyone to win a clear title to wisdom, namely, the example of weak and unworthy authority, longstanding custom, the feeling of the ignorant crowd, and the hiding of our own ignorance while making a display of our apparent knowledge.

To illustrate the difference between the innovator and the dull crowd of routinists who cannot even imagine that any improvement read more

To illustrate the difference between the innovator and the dull crowd of routinists who cannot even imagine that any improvement is possible, we need only refer to a passage in Engel's most famous book. Here, in 1878, Engels apodictically announced that military weapons are "now so perfected that no further progress of any revolutionizing influence is any longer possible." Henceforth "all further [technological] progress is by and large indifferent for land warfare. The age of evolution is in this regard essentially closed." This complacent conclusion shows in what the achievement of the innovator consists: he accomplishes what other people believe to be unthinkable and unfeasible.