qiān lǐ zhī xíng，shǐ yú zú xià！
千 里 之 行， 始 于 足 下！
tips：it means that a thousand miles journey begins with the steps made by your feet, indicates that in order to do something further, you need to take step-by-step action。
千：thousand
里：a Chinese unit of length, 1里=1/2km
之：indicates possession，possessive, means “of/的（de）”
行：journey
始于：begin with…
足：foot/feet
下：indicates direction “under”, here “足下” means the steps made under your feet.