are there any quotes simular to

" behind ones smile can cry oceans. one who does, can hide it well. " ?

Yes, here are a few quotes that are similar in meaning:

- "A smile can hide so much pain, and so can tears." - Shannon L. Alder
- "A smile is the best way to get away with trouble even if it's a fake one." - Masashi Kishimoto
- "Sometimes the strongest people are the ones who love beyond all faults, cry behind closed doors, and fight battles that nobody knows about." - Unknown

any others?

- "Tears are words that need to be written." - Paulo Coelho

- "The strongest people are not those who show strength in front of us, but those who win battles we know nothing about." - Jonathan Harnisch
- "Behind every sweet smile, there is a bitter sadness that no one can ever see and feel." - Tupac Shakur