On writing well:

“Examine every word you put on paper. You’ll find a surprising number that don’t serve any purpose.”

“Writing is hard work. A clear sentence is no accident. Very few sentences come out right the first time, or even the third time. Remember this in moments of despair. If you find that writing is hard, it’s because it is hard.”

“The only way to learn to write is to force yourself to produce a certain number of words on a regular basis.”

“Thinking clearly is a conscious act that writers must force on themselves.”

“The reader is someone with an attention span of about 30 seconds.”

Credits: William Zinsser, On Writing Well: The Classic Guide to Writing Nonfiction