If Egypt is unstable, then the entire region is unstable.

- Abdel Fattah al-Sisi

High-energy collisions have led to the observation of many hundreds of new hadronic particle states. These new particles, which are generally unstable, appear to be just as fundamental as the neutron and the proton.

- Carlo Rubbia

My father was a mean, controlling and manipulative person for most of his life. He was unpredictable and unstable.

- Joyce Meyer

For while the subjects of poetry are few and recurrent, the moods of man are infinitely various and unstable. It is the same in all arts.

- John Drinkwater

I got so used to being unstable that I started to only be comfortable being unstable.

- Josh Lucas

I don't know anybody that's not emotionally unstable or schizophrenic.

- Lauryn Hill

When I was going through puberty, I had all these feelings of being unstable through those years, and being uncontrollably drawn to things of beauty and things that are bad.

- Park Chan-wook