“Those who are in love with practice without knowledge are like the sailor who gets into a ship without rudder or compass and who never can be certain whether he is going. Practice must always be founded on sound theory, and to this Perspective is the guide and the gateway; and without this nothing can be done well in the matter of drawing.” WellsMatterDoneCertainSoundPracticeTheoryPerspectiveGuidesDrawingShipsCompassSailorGatewaysRudders Book:Delphi Complete Works of Leonardo da Vinci (Illustrated) Source: Delphi Complete Works of Leonardo da Vinci (Illustrated)
“No one thinks anything silly is suitable when they are an adolescent. Such an enormous share of their own behavior is silly that they lose all proper perspective on silliness, like a baker who is nauseated by the sight of his own eclairs. This provides another good argument for the emerging theory that the best use of cryogenics is to freeze all human beings when they are between the ages of twelve and nineteen.” ThinkingHumansUseAgeLosesHuman BeingsShareTheoryPerspectiveBehaviorArgumentSightSillyEnormousTwelveEmergingFreezeSuitableNineteenBakersSillinessEclairs Author:Anna Quindlen
“Social cognitive theory rejects the dichotomous conception of self as agent and self as object. Acting on the environment and acting on oneself entail shifting the perspective of the same agent rather than reifying different selves regulating each other or transforming the self from agent to object” DifferentSelfSocialActingEnvironmentObjectsTheoryPerspectiveOneselfAgentsRejectsConceptionShiftingTransformingCognitiveSelf Efficacy Author:Albert Bandura
“If you want to make better theory, you've got to use the best that's available and look through the lens of another discipline to see if you can uncover more anomalies. By looking at the phenomena of failure from the perspective of sales, marketing, finance, general management, and the equity markets, I was able to see things that Rebecca [Henderson] hadn't.” IfsWantLooksUseAbleTheoryPerspectiveDisciplineManagementMarketingAvailableFinanceLensesEquityAnomaliesRebecca Author:Clayton Christensen
“Henceforth, whilst there are a great many theories and models proposed as to how, or why, magic works (based on subtle energies, animal magnetism, psychological concepts, quantum theory, mathematics or the so-called anthropomorphic principle) it is not a case that one of them is more 'true' than others, but a case of which theory or model you choose to believe in, or which theory you find most attractive. Indeed, from a Chaos Magic perspective, you can selectively believe that a particular theory or model of magical action is true only for the duration of a particular ritual or phase of work.” BelieveActionEnergyAnimalPrinciplesCasesMagicParticularTheoryPerspectiveModelsConceptsMathematicsChaosPsychologicalAttractiveGreat MenSubtleRitualYou ChooseQuantumPhasesDurationQuantum TheoryMagnetismAnimal Magnetism Author:Phil Hine
“The expectations of theory colour perception to such a degree that new notions seldom arise from facts collected under the influence of old pictures of the world. New pictures cast their influence before facts can be seen in a different perspective.” WorldDifferentFactsInfluenceTheoryPerspectiveDegreesPerceptionExpectationsNotionCastsAriseColourDifferent PerspectiveOld Picture Author:Niles Eldredge