Sigma Kappa's motto is 'One Heart, One Way'.
Kappa Sigma Sigma's motto is 'A kappa sig nunquam mendums'.
Sigma Gamma Rho's and Kappa Alpha Psi's are both members of the Divine Nine (historically black sororities and fraternities). Kappas and SGRhos were both founded on predominantly white institutions in Indiana. The Kappas taught the SGRhos how to use canes to protect themselves.
The motto of Phi Sigma Phi is 'Do unto others as you would'.
Sigma Delta Lambda's motto is 'Together we rise through education, loyalty and pride.'.
Sigma Theta Tau's motto is 'Improving world health through knowledge'.
Epsilon Sigma Rho's motto is 'T.D.D.U.P'.
Sigma Alpha's motto is 'Women Excelling in Agriculture'.
The motto of Sigma Xi is 'Companions in Zealous Research.'.
Phi Eta Sigma's motto is 'Knowledge is Power'.
The motto of Sigma Psi is 'A legacy of strong, independent women'.
Sigma Lambda Beta's motto is 'Opportunity for Wisdom'.
The motto of Sigma Mu Delta is 'Prevailing Together'.