History is indeed little more than the register of the crimes follies and misfortunes of mankind.
This is one small step for a man one giant leap for mankind.
I hope for your help to explore and protect the wild ocean in ways that will restore the health and in so doing secure hope for humankind. Health to the ocean means health for us.
All mankind... being all equal and independent no one ought to harm another in his life health liberty or possessions.
No true and permanent fame can be founded except in labors which promote the happiness of mankind.
For all its terrible faults in one sense America is still the last best hope of mankind because it spells out so vividly the kind of happiness that most people actually want regardless of what they are told they ought to want.
Leibniz dedicated his life to efforts to educate people to understand that true happiness is found by locating their identity in benefitting mankind and their posterity.
The cause of justice is the cause of humanity. Its advocates should overflow with universal good will. We should love this cause for it conduces to the general happiness of mankind.
To desire and strive to be of some service to the world to aim at doing something which shall really increase the happiness and welfare and virtue of mankind - this is a choice which is possible for all of us and surely it is a good haven to sail for.
I take it that the good of mankind means the attainment by every man of all the happiness which he can enjoy without diminishing the happiness of his fellow men.