SEO - A tough Science to pin down

Before starting a long Journey I would like you to know few things about Search engine optimization. Seo involves hard work and is dynamic in nature. Just recollect this before taking Seo as a career . Don't think that seo is never going to change. Seo rely on search engines and search engines rely on algorithms ( Algorithms - Its types of dynamic mysterious Mathematical calculations based on which search engines rank there web pages ... Just as our academic marks decides our rank in class) . Search ranking algorithms keeps on changing . If you are lucky, then these changes will mildly effect your website ranking . Always construct your site while keeping targeted users in mind . Don't build it to please search engines. Because its more likely that your search ranking will turned on their head. That's why its vitally important to build users oriented websites and then for search engines . Its realistic to understand that you will end up putting dozen of hours into your seperate seo efforts. Like Site Design, Its Conten, its Developing part etc. This seems to be little confused explanation to many of the novice out there .. but don't worry the picture will be more visible as the wonderful journey of seo progresses. SO R U READY FOR EXPEDITION.?