To all these questions, there is but one answer:

עֲבָדִים הָיִינוּ הָיִינו. Avadim hayinu.

עַתָּה בְּנֵי חוֹרִין: Ata b'nei chorin.

We were slaves. Now we are free.

We were slaves to Pharaoh, and God took us from there with a strong hand and outstretched arm. Had God not brought our ancestors out of captivity, then even today we and our children and our grandchildren would still be slaves. Even if we were all wise and the most knowledgeable scholars, we would still be obligated to tell the story of the Exodus.

haggadah Section: -- Four Questions
Source: Jewish Boston