Sentence:  Some people are born with a vital and responsive energy. It not only enables them to keep <WSD>abreast</WSD> of the times; it qualifies them to furnish in their own personality a good bit of the motive power to the mad pace. 
Meaning of the word marked with <WSD> tags:  Up to a certain level or line; equally advanced(First attested in the mid 17th century.)<ref name=SOED/>