Read elie wiesel's speech, what does wiesel suggest us do to avoid future tragedy and injustice?

it is with a profound sense of humility that i accept the honor you have chosen to bestow upon me. i know: your choice transcends me. this both frightens and me.
it frightens me because i wonder: do i have the right to represent the multitudes who have perished? do i have the right to accept this great honor on their i do not. that would be presumptuous. no one may speak for the dead, no one may interpret their mutilated dreams and visions.
it me because i may say that this honor belongs to all the survivors [of the holocaust] and their children, and through us, to the jewish people with whose destiny i have always identified.
i remember: it happened yesterday or eternities ago. a young jewish boy discovered the kingdom of night. i remember his bewilderment; i remember his anguish. it all happened so fast. the ghetto. the deportation. the sealed cattle car….
i remember: he asked his father: “can this be true? ” this is the 20th century, not the middle ages. who would allow such crimes to be committed? how could the world remain silent?
and now the boy is turning to me: “tell me,” he asks. “what have you done with my future? what have you done with your life? ”
and i tell him that i have tried. that i have tried to keep memory alive, that i have tried to fight those who would forget. because if we forget, we are guilty, we are accomplices….
and that is why i swore never to be silent whenever and wherever human beings endure suffering and humiliation. we must always take sides. neutrality the oppressor, never the victim. silence encourages the tormentor, never the tormented. sometimes we must interfere. when human lives are endangered, when human dignity is in jeopardy, national borders and sensitivities become irrelevant. wherever men or women are persecuted because of their race, religion, or political views, that place must — at that moment — become the center of the universe….
there is so much injustice and suffering crying out for our attention: victims of hunger, of racism, and political persecution, writers and poets, prisoners in so many human rights are being violated on every continent. more people are oppressed than free….
there is much to be done, there is much that can be done. one person…one person of integrity, can make a difference, a difference of life and death. as long as one dissident is in prison, our freedom will not be true. as long as one child is hungry, our lives will be filled with anguish and shame. what all these victims need above all is to know that they are not alone; that we are not forgetting them, that when their voices are stifled we shall lend them ours, that while their freedom depends on ours, the quality of our freedom depends on theirs.
this is what i say to the young jewish boy wondering what i have done with his years. it is in his name that i speak to you and that i express to you my deepest gratitude. no one is as capable of gratitude as one who has emerged from the kingdom of night. we know that every moment is a moment of grace, every hour an offering; not to share them would mean to betray them. our lives no longer belong to us alone; they belong to all those who need us desperately.