If in my youth I had realized that the sustaining splendour of beauty of with which I was in love would one day flood back into my heart, there to ignite a flame that would torture me without end, how gladly would I have put out the light in my eyes. Michelangelo
Mature love is composed and sustaining; a celebration of commitment, companionship, and trust. H. Jackson Brown, Jr.
Sustaining true friendship is a lot more challenging than we give it credit for. Mariella Frostrup
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life. Wislawa Szymborska
There are three types of innovations that affect jobs and capital: empowering innovations, sustaining innovations and efficiency innovations. Clayton M. Christensen