Olympic gold medallist Barbara Kendall urged the young women of Hawke's Bay to have the confidence to use their voices for good in a world of negative people, or "Donalds".
The five-time Olympic boardsailor imparted her success story on Woodford House students in the school's new Shine Strengths masterclass on Friday.
Kendall said the young women must remember to have self-belief in life and that the truth will always prevail above the "Donalds" of the world.
"The biggest thing that has been said about women in leadership roles is confidence and self-esteem. Being able to speak up about what you believe in and speaking clearly, speaking precisely," she said.
Woodford House principal and Shine Strengths founder Julie Peterson said she started the programme to reinstate young women's innate qualities that seem to diminish as they grow older.