How do I learn Spanish?
Soak and practice. Listen to a spanish radio channel or movie or show and then speak with a fluent speaker, all the while looking up words and conjugations as they come up. Read spanish literature, articles or stories, and then write paragraphs and have them checked by a fluent reader. (Of course, there's always Duolingo for a little extra vocabulary practice.)
What makes a piece "well-written"?
Its readability. Period. A piece that is well-written is grammatically and semantically sound, and uses interesting vocabulary that does not distract from the thesis. The language is clear and concise, yet has a natural flow. When appropriate, it caters to the reader's emotions and intellect, while also providing information in a logical yet organic format. Profound points are built up and placed carefully. A well-written piece always has a strong ending.
Why do animals (including humans) behave the way they behave? How does the brain and nervous system work? What are the factors that shape my experience?
These questions are the foundations psychology. The answers? Usually leading to more questions. Psychologists have discovered behavioral concepts like heuristics and positive/negative reinforcement, neuroscientists have discovered physical concepts like neuronal processes, and we are always piecing together puzzle pieces from all camps of psychological study to form a larger picture. Having studied psychology for four years, I am familiar with the theories pertaining to categorical perception, social psychology, abnormal psychology, cognitive neuroethology, language and thought, pseudoscience in psychology, and some neuroscience.