That man sold his own blood so that I could study. Today, when I earn one hundred thousand a month, he came to ask me for money, and I refused to give him a single cent.

When I was accepted to university, all I had was a piece of paper saying I’d passed and a burning dream of escaping poverty. Life was so hard that if there was meat on the table, even the neighborhood dogs would bark with excitement.

My mother died when I was ten, and my biological father disappeared long before I could even remember his face. The only one who took me in was a man who wasn’t related to me by blood: my stepfather, or rather, the man who was my real father.

He was my mother’s childhood friend. He earned a living pushing a wheelbarrow or riding a motorized bicycle, and lived in a tiny rented room, ten square meters, by the riverbank. When my mother left, it was he, despite his own poverty, who said, “The boy is coming with me.” And throughout my school years, that man worked himself to the bone day and night, going into debt up to his neck, so that I wouldn’t have to drop out.

Once, I needed money for a course and I was too embarrassed to ask him. That night, he gave me some crumpled bills that smelled like a hospital and said in a low voice, “Your father went to sell blood. They gave him a little money. Here, my son.”

That night, I cried like a baby. Who lets their own blood be drawn over and over again just to pay for the education of a child who isn’t even their own flesh and blood? Well, my dad did it all through high school. Nobody ever knew, just the two of us.

When the letter from the university in Brasilia arrived, he hugged me and almost cried with pride. “You’re a genius, kid,” he told me. “Put your heart into this. I can’t be with you forever, but you have to study to get ahead in life.”

At university, I got by working in cafes, giving private lessons, doing whatever I could. But he, stubborn as ever, kept sending me money every month, even if it was the last of his resources. I told him not to send it, and he’d reply, “A father’s money is a son’s right, my boy.”

When I graduated and got a job at a multinational company, my first salary was five thousand reais. I sent him two thousand at once. But he refused to accept it. “Keep that,” he told me. “You’ll need it. I’m an old man now, why do I need so much stuff?”

Almost ten years passed, and I was now a manager. I earned more than thirty thousand reais a month. I thought about bringing him to live with me in the city, but he refused. He said he was already used to his simple life and didn’t want to be a burden. Knowing his stubbornness, I didn’t insist.

Until one day he appeared at my house. He was thin, sunburnt, with completely white hair. He sat down, ashamed, on the edge of the sofa and said to me almost in a whisper, “My son… your father is old now. My eyesight is failing, my hands tremble, and I get sick often. The doctor says I need surgery that costs about twenty thousand. I have no one else to turn to… that’s why I came to ask you for a loan.”

I remained silent. I remembered the nights he made me tea when I was sick. The times I came home soaking wet from carrying the backpack I’d forgotten at school. The early mornings when I found him asleep in an old chair, waiting for me to return from my classes.

I looked him straight in the eyes and said in a low voice, “I can’t. I’m not going to give you a single penny.”

He remained silent. His eyes filled with tears, but he wasn’t angry. He nodded slowly and stood up, like a beggar who’d just had a door slammed in his face.

But before he left, I took his hand and knelt down.

“Dad… you are my true father. How can we talk about debts between a father and son? You gave me your whole life, now let me take care of you for the rest of yours. Before you said, ‘The father’s money is the son’s right’; now, my money is your right.”

That’s when he broke down and cried. I hugged him tightly, like a child terrified by a nightmare. His back, all bone and trembling, made me cry too.

From that day on, he’s lived with us. My wife didn’t object; on the contrary, she takes care of him lovingly. Although he’s quite old now, he still helps out around the house whenever he can, and when we can, we go for walks or travel together.

I’m often asked, “Why do you treat your stepfather so well, when he could barely give you anything when you were a student?” I just smile and reply, “He paid for my education with his blood and his years. We’re not related by blood, but he loved me more than a real father. If I don’t take care of him, then what’s the point of life?”

There are debts in this world that money can’t pay. But when it comes to gratitude, it’s never too late to repay… fully, sincerely, and with all your heart.