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Phrase(s): He travels fastest who travels alone.
Prov. It is easier to achieve your goals if you do not have a spouse, children, or other connections to consider. • Jill: Don’t go yet! Wait for me to get ready. Jane: But you always take at least half an hour. No wonder they always say that he travels fastest who travels alone.
McGrawhill's American Idioms And Phrasal Verbs