These were the words of Dr Jane Goodall, founder of the organisation, encouraging students to take a stand on environmental issues.
The renowned chimpanzee expert gave a public lecture at Wits University on 7 February.
Goodall also praised the work the organisation was currently doing, highlighting strides made such as getting China to ban the use of shark-fin meat in Chinese restaurants and being activists for the environment.
Roots & Shoots was formed to create awareness among youngsters on key environmental issues.
The organisation is active in over 134 countries and is made up of volunteers, young and old alike.
According to Goodall, her interest in activism was sparked by the inhumane way people were treating chimps, and she decided to do something about it.
“What I saw shocked me to the point of activism, so I decided to do more,” she added.
She also praised her mother’s support during her early years learning about the species, as she encouraged Goodall to work hard if that was something she really wanted.
She also advised students to question everything. “Don’t let people tell you that something isn’t true, explore and examine it,” she urged.
The public lecture was titled The life and times of Dr Jane Goodall – in celebration of her 80th year. Also present at the lecture was Wits vice-chancellor Prof.Adam Habib and Prof. Lee Burger.