Answer: According to the author of the: Treaty of Human Nature, complete: "All simple ideas in their first appearance stem from their due and represent exactly.
Explanation: Hope this is what you were asking for
If you use "despues" you have to use the preposition "de" because is after doing something and if you don't use it it's like "after the shower.". not like "after taking a shower" wich is what you really mean.