Xi Jinping used this phrase during his speech at the 23rd St. Petersburg International Economic Forum on June 7th 2019.
The phrase originates from a scholarly article《格言联璧·学问篇》written by Qing Dynasty scholar 金缨 Jīn yīng; it describes the limitless power of ambition and its ability to allow one to overcome difficulty in order to achieve their goal.
Meaning
With ambition, anything is achievable.
Original
“可持续发展是社会生产力发展和科技进步的必然产物，契合世界上绝大多数国家的共同诉求。中国人讲：“志之所趋，无远弗届。”
Source
https://www.xinhuanet.com/politics/leaders/2019-06/08/c_1124596100.htm