Angemessenheit / Adequacy Ausreichend / Sufficient
Acting doesn't suffice.
The sufficiency of merit is to know that my merit is not sufficient.
Suffice it to say, I'm not poor.
Scientists are always skeptics.
Suicide is not a remedy.
Any sufficiently badly-written science is indistinguishable from magic.
Suffering isn't ennobling, recovery is.
To have a body is to suffer.
Power is not sufficient evidence of truth.