Many people scare to write because they may commit plagiarism. I think this is unfounded. Writing is the act of expanding ideas. It is pertinent when ideas, images, graphs are borrowed the original writer ought to be given due acknowledgement.
So long that he/she is acknowledged, quoting the work of another person is permissible. As author, I am proud if my works are being referred by others. It means that my works have reached certain level that require others to notice it (at least) and therefore received due recognition.
Plagiarism can be avoided by proper instruction and education about respecting original author’s idea, giving due respect by quoting his words or works.
So readers…please quote my work.
Idea-logy 