TMD还有个affection，volition，motivation，affection都是和价值相关的，都有哪些微妙的差异呢？

从wiki上的定义来看，似乎motivation更倾向于目标和期望，volition更倾向于执行力：
Volition or will is the cognitive process by which an individual decides on and commits to a particular course of action. It is defined as purposive striving and is one of the primary human psychological functions. Others include affection (affect or feeling),motivation (goals and expectations), and cognition (thinking
但volition与motivation在心理学上的区分也是有争议的：
In the book A Bias for Action, which sets to differentiate willpower from motivation - the authors use the term volition as a synonym for willpower and describe briefly the theories of Kurt Lewin. While Lewin argues that motivation and volition are one and the same, the authors claim that Ach argues differently.
并且Ach的观点似乎更像TELOS被我所理解的那样，motivation是第一道门槛，volition是第二道门槛：
According to the authors, Ach claims that there is a certain threshold of desire that distinguishes motivation from volition: when desire lies below this threshold, it is motivation, and when it crosses over, it becomes volition. Using this model, the authors consider individuals' differing levels of commitment with regard to tasks by measuring it on a scale of intent from motivation to volition.

12年的review
Human volition: towards a neuroscience of will
http://thebrainandthemind.co.uk/Build/Assets/readings/Human%20Volition%20Patrick%20Haggard.pdf

MOTIVATIONA LBELIEFS, VALUES, AND GOALS
reviews the recent research on motivation, beliefs, values,and goals, focusing on developmental and educational psychology
http://htlab.psy.unipd.it/uploads/Pdf/lectures/Bussolon/Eccles2002_Motivational%20Beliefs%20Values%20and%20Goals.pdf

Toward a Science of Volition
http://mitpress2.mit.edu/books/chapters/0262513420chap1.pdf

It is thus possible that it can represent and integrate the outputs of all of
the functional areas of both hemispheres of the brain: sensory, cognitive, limbic, and motor.
limbic是什么？怎么与sensory等在一起

当我们很想做一件事，但是没有决定什么时候要完成它时，就容易表现出拖延、松懈懒散
是否也算是反映了motivation和volition的不同，volition控制的是执行速度/力度，是GO gate，而motivation是选择Target
还有一个麻烦就是，即使我们决定要某个时候前完成一件事，我们也可能会变更这种决定，这是比较痛苦的
所以我们需要找出最重要，考虑足够广的目标。但是可能我们的计算资源远远不够，我们休想找到那样一个稳定的目标，这还算好的，更可怕的是这个解本身不存在，这意味着我们考虑的越广，我们将越失去方向。
我们也可以拒绝变更每一个决定，认为motivation是什么不重要，重要的是完成它，这样的我们看起来是有方向且强烈意志的。

其实很简单，motivation或者说层级启动信号，它是层级展开，存储的是将大目标分解成小目标的执行顺序，具体的执行速度是取决于具体情景下任务的紧急程度的，由volition控制。