Be strong. Overflow with emotional and intellectual energy, and you will spread your intelligence, your love, your energy of action broadcast among o… - Pyotr Kropotkin

Struggle so that all may live this rich, overflowing life. And be sure that in this struggle you will find a joy greater than anything else can give.

Inevitably, industry is directed, and will have to be directed, not towards what is needed to satisfy the needs of all, but towards that which, at a given moment, brings in the greatest temporary profit to a few.

...do not the bewitching power of all studies lie in that they continually open up to us new, unsuspected horizons, not yet understood, which entice us to proceed further and further in the penetration of what appears at first sight only in vague outline?