Remember how human labor differs from animal “labor”.

1. Only people are capable, before starting work, to present in detail the final result, and in the process of work to strive to implement the plan. Animals are not inherent in goal-setting. Often a person first thinks about what and for what to do, selects the best ways to achieve the goal, in a word, shows awareness. Animals are not able to think so, to plan something, they act instinctively. If a person often uses a creative approach in work, then animals are deprived of this opportunity. None of them, with rare exceptions, are unable to invent original ways of solving various problems.
2. If we talk about a person, then he clearly understands which tool must be used in a particular case. In addition, people not only use machines and mechanisms that are sometimes quite complex in control for their intended purpose, but also produce them themselves. Animals, meanwhile, can use objects of nature in their actions, but making tools is not available to them.
3. It is natural for a person to work in a team where there is mutual assistance, exchange of experience, joint decision-making. Animals do not have this form of communication. Even with the impression of a clear organization (bees, ants), they ultimately only act, driven by instincts and reflexes, and do not work, as a person does.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.