Unless there is a Good Friday in your life, there can be no Easter Sunday.

Remember that every science is based upon an abstraction. An abstraction is taking a point of view or looking at things under a certain aspect or from a particular angle.

Head knowledge is worthless, unless accompanied by submission of the will and right action.

The science of a religious man must be scientific; the religion of a scientific man must be religious.

Freedom is not just something with which we are born; it is something we achieve. America did not receive a perpetual endowment of freedom; it has had to struggle and fight to preserve it. Freedom is not an heirloom or an antique; it is a life that must fight against the corrosive powers of death and nourish itself on the daily bread of goodness and virtue.

All worry is atheism, because it is a want of trust in God.

Hearing is the motion of molecules; sound is a wave in the atmosphere; solidity is the characteristic of spatial juxtaposition of atoms; smell is something given off by a body, rather than something belonging to a body.