Angelina Jolie preaches to her daughters about the importance of helping others

Speaking in the March issue of Elle magazine, Angelina said: "I tell my daughters, 'What sets you apart is what you are willing to do for others. Anyone can put on a dress and make-up. It's your mind that will define you.

"Find out who you are, what you think, and what you stand for. And fight for others to have those same freedoms. A life of service is worth living."

The 'Maleficent' star - who also has sons Maddox, 16, Pax, 14, and Knox, Vivienne's twin, with the Hollywood actor - thinks females need to stick together and stand united in "solidarity" out of respect to all the women who've "fought" for equality in the past.

She added: "I think of how hard women fought to get us to where we are today.

"Everything counts, from the way you hold yourself in daily life and educate yourself on your own rights, to solidarity with other women around the world.'"

The actress and activist was speaking in an interview with the former Secretary of State John Kerry about her campaign against the use of rape and sexual violence as weapons in war.

Angelina previously said she feels "a sense of responsibility" toward people "all around the world".

The 'Salt' star was speaking after being bestowed with a humanitarian award from the UN Correspondents Association Awards in December.

At the time, she explained: "I am proud to be American. But I also feel a sense of responsibility towards all other people all around the world fighting for the freedoms that we are very lucky to have secured years ago.

"And for me, this is what it means to be a citizen of the world: seeing yourself in the struggles of others."