any of these set of laws is overlooked the nation is not guaranteed to be the fittest. If only materialism is considered adequate and ethical structure is not developed than this materialism will cause the nation to vanish. On the other hand if only morality is given preference and materially it is not developing, so the nation will not be able to create a strong culture and civilization and there is no assurance of its existence. “Up to achievable level produce tools of power and strength and put in order your horses to struggle against your rival”. (Al-Anfal – 60). “Peace keepers be strong and give evidence for justice, the enmity of any group may not induce you prejudice. Be just in every state of affairs, it is very close to realism”. (Al-Maida – 8) “Don’t deflect from justice while obeying your wishes”. (Al-Nisa- 135) From these above explanations of Quranic verses it is clear that Islam is in favor of both, that is material progress as well as moral progress. Quran has emphasized on justice both in communal and national life. Looking closely the wrapping up of all the reality of manners is justice. According to Imam Ghazali the anthology of all preferences is justice. “Justice is the name of training of mental power and animal instinct in human beings. The development of justice means the development of expedience, self-effacing and courage”. (Ahya-ul-Aloom – Vol3 – p-48). Hazrat Shah Wali Ullah declares justice in these words,” Justice is a potential which facilitate us in supervision of state affairs”. (Hujjat Ul Balagha – Vol-1-p-98). Regarding national and party life it is the duty of every individual to maintain justice. Preservation of justice means that each and every thing must be put on its own vicinity and perimeter. Every one should get his right and fulfill the rights of others with out any abatement. Plato is of the opinion that the very essence of justice is spiritual and matter of conscience. Man must be disciplined to such extent that he performs his own duty and not meddle in others. (Tarikh-e-Akhlaq- 33). To sum up we can say that justice is so prolonged that it encircles each and every facet of life and turn out to be the very spirit of it. To what extent a nation attains this quality (Justice) it will be the fittest as compared to other nations. And it will be worthy of to carry on its subsistence. So according to Islam the fittest is the one, who is just and cooperative.