Immanuel Kant famously wants us to think for ourselves. However, thinking collaboratively is often preferable to solitary thinking, especially in educational contexts. In this paper, I argue that Kant does not advocate a problematic form of epistemic or pedagogical individualism. For my argument, I focus on the area that, one might suspect, lends itself the least to collaborative reasoning on Kant's framework: morality founded in rational a priori structures. I show that Kant is aware of both the prospects and limits of reasoning on one's own and with others. According to Kant, openness, rooted in an attitude of mutual trust, is required to reason well with others. Kant, however, does underestimate the significance of diversity for collaborative reasoning.
K E Y W O R D Sa priori, collaborative reasoning, friendship, Kant, moral education Immanuel Kant famously encourages us to 'Sapere aude! Have courage to make use of your own understanding!' (Kant, 1996a, p. 17 [8:35.6-7]), and to 'Think for oneself' (Kant, 2017, p. 174 [5:294.16]). This 'motto of enlightenment' (Kant, 1996a, p. 17 [8:35.7-8]) has had a profound impact on how we understand the aims of Kant's philosophy. Similar thoughts are also central to much contemporary theorising about education-such as the emphasis on fostering critical thinking in children and students 1 -and to certain educational practices and policies-such as practices of assessment where we are concerned with what individual students can do independently of others. However, recent findings in psychology indicate that thinking collaboratively is often preferable to solitary thinking. This raises the question: Is 'Think for yourself' good advice indeed?One might think Kant's explicit endorsement of reasoning for oneself as a model for enlightened thinking alongside his well-known fondness for the a priori would commit him to a form of individualism, according to which the most important questions of human existence, those of morality, can and should be worked out in solitary introspection. 2