It is said that love may be defined as "the engine of the world." It is what gives people the strength to keep struggling in this hard world full of egoism and selfishness. For some people, love is an emotion which helps them overcome obstacles and believe in miracles. For others it is more than an emotion. For example; a mother may not feel that she loves a baby that is crying at three a.m. There are many interpretations of love depending on age, sex, background, values, and the context. In the case of English writer Julian Barnes, author of the novel "Talking It Over," it is clear how pessimistic he is with regard to love within friendships, sexuality, and family.

"Therefore" and "however" are linking words. Consider not using them to begin sentences. Use quotation marks with titles. Consider the excess words which I have deleted from your essay, and this affects the reader's ability to understand the thoughts and opinions you express. Good writing. 
 -- Daniel