“不积跬步，无以至千里；不积小流，无以成江海”出自（   ）
“If you do not accumulate small steps, you will not be able to travel thousands of miles; if you do not accumulate small streams, you will not be able to build rivers and seas.” comes from (  )
A、《荀子·劝学》 Xun Zi's Persuasion of Learning
B、《老子》 Tao Te Ching
C、《韩非子》 Han Feizi
D、《孟子》 The Mencius