put this in other words

Sojourner Truth was able to speak without notes or preparation because she had firsthand experiences of being a slave, a woman, and an advocate for freedom and equality. These personal experiences and her passion for the cause allowed her to deliver an impromptu and powerful speech.

Sojourner Truth had the ability to give a speech without needing any written notes or prior preparation due to her direct firsthand encounters as a slave, a woman, and a supporter of freedom and equality. These personal experiences, along with her strong dedication to the cause, enabled her to deliver a spontaneous and impactful address.