Emerson argues that strength comes from concentrating attention, effort and resources rather than dispersing them across too many aims. He applies this principle broadly to politics, warfare, trade and management, suggesting that coordinated action becomes more effective when people and resources are directed towards a clear purpose.

Within Power, the statement reflects Emerson’s wider interest in practical effectiveness and the conditions that allow individuals or organisations to achieve results. Concentration does not mean ignoring relevant information or refusing to adapt; rather, it involves giving sufficient force to the priorities that matter most. The quotation presents focus as a general principle of organised action: when energy is fragmented, influence is weakened, while disciplined attention can increase the impact of available resources. Emerson therefore treats concentration as a source of practical strength across many forms of human activity.