"语言是铲子在为那些无法说话的人堆积石冢"

Simplified Meaning:

Words have a powerful impact, especially on behalf of those who cannot defend themselves or express their thoughts. Imagine a situation where someone is being bullied at school. The victim might be too scared or shy to speak up. In this case, others using their words to stand up for the victim is like using a tool to help build a protective barrier around them. Just as spades are used to move and shape earth, words can be used to shape situations and create safe spaces for those who cannot speak out. This can be seen in history too, like when activists spoke out for civil rights. Their words helped those who were oppressed and couldn't openly challenge the unfair system. Using your voice to support and protect others who are in a vulnerable position can create big changes. For instance, if you see someone being treated unfairly at work and you speak up about it, you are effectively using your 'spade' to help them. It shows how important it is to use our ability to speak wisely and considerately to help others who are struggling to find their own voice.