This article examines the perceived conflict between freedom and sustainability, proposing that a qualitative understanding of freedom can integrate liberal and ecological interests. It critiques the notion of quantitative freedom, focused on maximizing individual choices without considering their content or purpose, for ignoring essential aspects such as the rights of future generations and ecological sustainability. In contrast, it argues that qualitative freedom, which values options based on their contribution to human autonomy and dignity, offers a more comprehensive solution. This perspective (...) prioritizes options that promote the freedom of all, including future generations, and suggests that some restrictions may be necessary to enhance sustainable life opportunities. The conclusion asserts that qualitative freedom should precede the quantitative consideration of options, allowing sustainability policies to be viewed not as limitations on freedom but as qualitative improvements that ensure better opportunities for all, both now and in the future. (shrink)