Point your mouse at the start of the text. Hold down the left button. Move the mouse to select the text. Release the left button and click the right button. Choose 'copy'. Voila.
If you select something that isnt text, it may not offer you the copy option because I think it isnt sure what to do with the non text.
Be fearful when others are greedy, and greedy when others are fearful. Just another form of "buy low, sell high" for those who have trouble with things. This rule is not universal. Do not buy a 1973 Pinto because everyone else is afraid of it.