To get into that high and constant level of concentration requires a huge effort. # concentration# work Share the Post Rizqi Fahma I read, I write, I bike, I swim, but I don't smoke. Leave a ReplyCancel ReplyYour email address will not be published. Required fields are marked * Name * Email * Website Add Comment * Notify me of follow-up comments by email. Notify me of new posts by email.Post Comment Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.