An unchanging unit in which the situations are permuted, according to a system, or logic or counter-logic.

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"I would sum up my fear about
the future in one word: boring."

"Humanise something free of error."

"This, of course, will be mere electronic wallpaper."

In conventional parlance, vanity is the excessive belief in one's own abilities or attractiveness to others.

"Chess can be described as the movement
of pieces eating one another."

A proximate cause is an event which is closest to, or immediately responsible for causing, some observed result. This exists in contrast to a higher-level ultimate cause (or distal cause) which is usually thought of as the "real" reason something occurred.

"It’s not about standing still and becoming safe.
If anybody wants to keep creating they have
to be about change."

"The written word is of course a symbol for something and in the case of a hieroglyphic language like Egyptian it may be a symbol for itself that is a picture of what it represents. This is not true in an alphabet language like English… we may forget that a written word is an image and that written words are images in sequence that is to say moving pictures."

A game that everybody knows. If you play correctly on a 5 x 5 grid you can never lose.

Perception of colour begins with specialized retinal cells containing pigments with different spectral sensitivities, known as cone cells. In humans, there are three types of cones sensitive to three different spectra, resulting in trichromatic colour vision.

Sorting is any process of arranging items in some sequence and/or in different sets, and accordingly, it has two common, yet distinct meanings:

1. Arranging items of the same kind, class, nature, etc. in some ordered sequence
2. Grouping and labelling items with similar properties together (by sorts)

A combination puzzle, also known as a sequential move puzzle, is a puzzle which consists of a set of pieces which can be manipulated into different combinations by a group of operations. The above puzzle is solved when no tile design is repeated in any row or column.

"I am going to make a name for myself.
If I fail, you will never hear of me again."

"As it is with people in our daily life, so it is with colour. We change, correct, or reverse our opinions about colours, and this change of opinion may shift
forth and back."

"Now I will have less distraction."

The tangram is a dissection puzzle consisting of seven flat shapes, called tans, which are put together to form shapes. The objective of the puzzle is to form a specific shape using all seven pieces, which may not overlap.

"Chess can be described as the movement
of pieces eating one another."

"People like us, who believe in physics, know that the distinction between past, present, and future is only a stubbornly persistent illusion."

An identity crisis is a term in an epigenetic and social psychological theory in which an individual loses a sense of personal sameness and historical continuity. The term was coined by the psychologist Erik Erikson. According to Erikson, an identity crisis is a time of intensive analysis and exploration of different ways of looking at oneself.

The Oblique Strategies constitute a set of over 100 cards, each of which is a suggestion of a course of action or thinking to assist in creative situations.

Designed by John Carver and Red Ranch, the Street Sounds Electro sleeves eventually went on to inspire an electro cover of The Face magazine by Neville Brody. Perhaps overshadowed at the time by the music that the records carried, the Street Sounds sleeves were undoubtedly part of their success.

The Orbison illusion is an optical illusion that was first described by the psychologist William Orbison in 1939. The bounding rectangle and inner squares both appear distorted in the presence of the radiating lines. The background gives us the impression there is some sort of perspective. As a result, our brain sees the shapes distorted.

"Chess can be described as the movement
of pieces eating one another."

Designed by brand consultants Wolff Olins, the 2012 Olympics logo was hailed as "dynamic" and "vibrant" by organisers. A segment of animated footage released at the same time as the logo design, caused seizures in a number of people who suffer from photosensitive epilepsy.