2254523 What a concept! CK 1 2293249 I assume you're familiar with this concept. CK 1 3264719 That's hardly a new concept. CK 1497649 Tom struggles with this concept. Spamster 1497650 Tom is struggling with this concept. Spamster 386740 I really like the concept of this website. CK 58444 This chapter will focus on the concepts of geometry. CM 932544 For him, hunger was an abstract concept. He had always had enough food. FeuDRenais