They draw back into themselves, and are thrown back on their own bodies for gratification. The men become narcissistic and uncertain of the power of … - Margaret Mead

We may say that many, if not all, of the personality traits which we have called masculine or feminine are as lightly linked to sex as are the clothing, the manners, and the form of headdress that a society at a given period assigns to either sex.

It is not until science has become a discipline to which the research ability of any mind from any class in society can be attracted that it can become rigorously scientific.

Laughter is man's most distinctive emotional expression. Man shares the capacity for love and hate, anger and fear, loyalty and grief, with other living creatures. But humour, which has an intellectual as well as an emotional element belongs to man.