“Never give up. Today is hard, tomorrow will be worse, but the day after tomorrow will be sunshine.”
Who said it: Jack Ma, founder of Alibaba Group
“To give up” means to stop trying. For example, “I didn’t succeed at getting any new clients this month, so I’m going to give up” is a way of saying that you will stop trying to get new clients.
The quote by Ma means that we should always keep trying. He warns us that some days will be difficult, but if we keep up the hard work, then eventually things will be really good.