Our initial sensory data are always "first derivatives," statements about differences which exist among external objects or statements about changes which occur either in them or in our relationship to them. Objects and circumstances which remain absolutely constant relative to the observer, unchanged either by his own movement or by external events, are in general difficult and perhaps always impossible to perceive. What we perceive easily is difference and change and difference is a relationship.
Gregory BatesonRelated topics
change constant datum difference general impossible initial observer perhaps remain sensory circumstancesRelated quotes
The unconscious is the larger circle which includes within itself the smaller circle of the conscious; everything conscious has its preliminary step in the unconscious, whereas the unconscious may stop with this step and still claim full value as a psychic activity. Properly speaking, the unconscious is the real psychic; its inner nature is just as unknown to us as the reality of the external world, and it is just as imperfectly reported to us through the data of consciousness as is the external world through the indications of our sensory organs.
Sigmund Freud
In many different fields, empirical phenomena appear to obey a certain general law, which can be called the Law of Large Numbers. This law states that the ratios of numbers derived from the observation of a very large number of similar events remain practically constant, provided that these events are governed partly by constant factors and partly by variable factors whose variations are irregular and do not cause a systematic change in a definite direction.
Siméon Denis Poisson
The relative freedom which we enjoy depends of public opinion. The law is no protection. Governments make laws, but whether they are carried out, and how the police behave, depends on the general temper in the country. If large numbers of people are interested in freedom of speech, there will be freedom of speech, even if the law forbids it; if public opinion is sluggish, inconvenient minorities will be persecuted, even if laws exist to protect them.
George Orwell
Changing the world is like trying to straighten a dog's tail. However much you may try, you won't succeed. But although the tail won't straighten, if you keep trying every day, at least you will put on some muscle. Similarly, even though it is difficult to make a change, our effort to do so in itself brings positive results. It will help us change. Without waiting for others to change, if we change ourselves first, that will make a difference. Instead of worrying about results, focus on doing our best in what we are engaged in.
Mata Amritanandamayi
Then there is the further question of what is the relationship of thinking to reality. As careful attention shows, thought itself is in an actual process of movement. That is to say, one can feel a sense of flow in the stream of consciousness not dissimilar to the sense of flow in the movement of matter in general. May not thought itself thus be a part of reality as a whole? But then, what could it mean for one part of reality to 'know' another, and to what extent would this be possible?
David Bohm