There may be some outward differences between you that have to do with your work or the level of recognition or success that you've reached, or even in your ages or your levels of life experience. Maybe you're far apart in age, or maybe your partner is already well-established in their career while you're only just starting out. Despite these outward differences, on the inside, you're very similar.
Recognition and success are very important to both of you, and neither of you is a stranger to hard work. You both recognize the fact that in order to get anywhere in life, you have to apply yourself in the best way that you know how, and to take any great advice that you're lucky enough to receive along the way. Your partner takes a similar approach to their relationships. They're grounded and practical in their work, but also in their love affairs; they take a realistic approach to matters of the heart, and they don't tend to let themselves get swept away on a cloud of sensation and romanticism. You're very similar, and because of that fact, you two do very well together in a relationship. You're both looking for the same things -- someone who is as hardworking as you are, someone who wants to put the same effort into the relationship as you do to ensure that it's a success. Once you've made that commitment, you're in it for the long haul.