Second language learning is the process of learning a different language other than one's native language, resulting in the ability to 'an individual to use one or more languages ​​different from their mother tongue. . This can take place in a natural setting or through classroom instruction; however, the degree of competence differs (Gomleksiz, 2001). Learning is a conscious process that includes thoroughly explaining grammar rules, practicing those rules, as well as memorizing vocabulary lists, usually in the classroom (Wisniewski, 2007). Learners typically use their culture, native language, environment, background, and personal experiences, among others, to learn a second language. Learning a second language is necessitated by the different situations of different people. For example, it could be for social or academic purposes. Learners are affected by many factors in the second language acquisition process, such as level of cognitive development, socio-economic and cultural background, age, motivation or abilities, and intelligence ( Gomleksiz, 2001; Wisniewski, 2007). This article will, however, focus on how intelligence or aptitude and motivation affect second language learning. According to (Wisniewski, 2007), the process of learning a second language differs from the acquisition of a first language, the latter usually taking place from childhood in a community using a specific language and affected mainly by developments neurological disorders of the brain (McCain, 2000) while the former usually occurs in school or later in life and is affected by age and associated characteristics (McCain, 2000). It is necessary to make a distinction between learning foreign languages ​​and second languages. According to (Wisniewski, 2007), language learning...... middle of article......t/cupidlucid/3-factors-affecting-l2-learning-presentation, nd). Just as with intelligence, successful language learners are not necessarily strong in all components of aptitude. In conclusion, success in learning a second language depends on many factors: motivation, aptitude and intelligence are just some of the important factors. When it comes to motivation, it has been found that motivated students perform better than those who are not. Motivation is the most important factor compared to intelligence and aptitude, although it must be considered in light of other factors. Indeed, as long as an individual is motivated, even if their IQ and aptitude are low, they will be able to succeed in learning languages. In a nutshell, the higher a student's levels of motivation, intelligence, and aptitude, the greater their chances of success in learning a second language..