Help with the transience of being...

I think that these two writers help to sum up what I am continually trying to say about transient flux:

"...from beginning to end, the philosophical thought of Sartre maintains a remarkable unity and permanence throughout all his works: this permanence is displayed by his repeated affirmation that consciousness is not a thing, that the distinctive feature of human reality is to always surpass itself towards its end, and therefore that it cannot be reduced to the level of determinism" (Audry 1955, in Lafarge, 1970, p.170).

In addition,

"We make ourselves what we are, in terms of a chosen end and according to a project which is always surpassing of the given. In other words, man "is only to the extent that he exists and he exists only by projecting himself toward, he is only by being elsewhere, outside-of-himself-in-the-world, he is, in a sense, this impossibility of being oneself. I am never in myself, I have no consistency of being within me, I exist only in my relation to the world" (Jeanson, 1952, p.75). And thus, according to Sartre, there is no such thing as human nature; only our freedom exists" (Lafarge, 1970, pp.170-171).