To celebrate March 8, International Women’s Day, we suggest these four TEDTalks gems from some amazing speakers — artists, scientists and economists who think deeply about the role of women.

Author and activist Isabel Allende discusses women, creativity, feminism — and the power of passionate thinkers and doers:

The former Finance Minister of Nigeria, Ngozi Okonjo-Iweala, talks about one key opportunity to grow African economies — by investing in women and the businesses they start:

(For more, watch Jacqueline Novogratz >>)

Scientist Nalini Nadkarni explores the world of the forest canopy — and shares her findings with the world below, through dance, art and bold partnerships. She’s working to inspire the next generation of women scientists:

The wonderful Nellie McKay sings “Mother of Pearl” (with the immortal first line “Feminists don’t have a sense of humor”) and “If I Had You” from her sparkling set at TED2008:

Find these four and many more astonishing women (including the legendary primatologist Jane Goodall, oceanographers Sylvia Earle and Tierney Thys, games theorist Brenda Laurel, Zipcar inventor Robin Chase … ) on TED.com >>