0 a small book or electronic device in which information is stored, such as names, addresses, phone numbers, and dates of meetings, used to help organize your time --
1 a book or small computer in which you keep a record of what you have to do, your meetings, etc.: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.